Identify This Weed
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We would like to help you identify weeds that you find around the county. If you see a weed that you would like identified please upload your photo below and include any details associated with the plant. It is especially helpful to add a common object to the photo for scale and try to include as many details as possible (location landmarks, size of the plant, size of the infestation, time of year, time of day photo was taken, height etc.) We will try to identify the plant and if you would like, help with management recommendations.
Before submitting, scroll down and review past submissions to make sure your weed hasn't already been identified.
01/20/2022: This was in hay purchased from Fremont County. Can you help ID this? Thank you, Susan
01/18/2022: What is this, it's not parsley
01/04/2022: This weed is in my irrigated alfalfa. Matures early. Very this leaves that get crispy.
12/30/2021: Stem was found unattached along a hedgerow between unused pasture and landscaped residence a short distance from from a small reservoir. The tomato-red berries are approximately 3/16" in diameter. They are thin-skinned with very little flesh and contain two black seeds. Offshoots alternate from the main stem and are separated by distances ranging from roughly 1/2" to 1".
12/27/2021: Quisiera saber qué tipo de hierba es
11/14/2021: It was quarter after 2, the bush it was in had numerous amounts of thorns on the stems. The end of the “bulb” was brown with them being super pointy and a bit on the harder side. I accidentally squished it a little and it was red of the inside, but appeared orange on my fingers, definitely stained a little too.
This is a Rose Hip from a wild Rose shrub.
11/10/2021: This 3' tall weed covers much of the burned ground on hillsides. It's leaves are about 1/2 inch long. It's roots are shallow. In September it's stems turned red.
10/31/2021: This plant is overtaking about 75% of my lawn. It is a thick plant (bush like) and the roots can be as long as 8 inches. It looks to have yellow/goldish flower blooms. I can get more pictures if needed.
10/21/2021: Herbaceous Weed
This is Redroot Pigweed. Its an annual weed that is very common.
10/16/2021: Growing in my pasture, about 2 feet tall, 2 feet across. This photo was in the evening but it looks the same all the time. There are several dozen plants growing, dryer soil, not a lot of moisture.
This is Smartweed. It's an annual in the Buckwheat family.
10/13/2021: Weed was almost bushy like - had other branches stemming off. Remained fairly low to the ground but spread out wider with other branches. All seemed to go back to one main/thick root though which grew straight down (probably about 10 inches) there were not really any other roots/definitely not one of the web-like root systems. I believe it first appeared in the summer.
10/11/2021: 10 am. Small seed pod whit flower w purple edges
10/05/2021: We have a xeriscape area on in backyard full sun, no water and this plant has overtaken everything. It looks like thyme but has no odor when leaves bruised . Not sure if we should get rid of it or not. We threw some saponia (soapwort) seeds down in the area but this has taken it over
09/27/2021: Length up to 12 inches
09/25/2021: Fern like plant or weed? Can’t seem to find a name for it and don’t find online pics that look the same. It seems to be all over the flower bed.
This looks like a Yarrow plant.
09/25/2021: This weed invaded our lawn. Can’t seem to find the correct name.
09/20/2021: less than 10 inches, both of them. Early morning. these are in a residential yard in the city that gets full sun and has very sparse grass.
09/13/2021: This appears to be a weed, The plant is low to the ground with a long stalk & lovely long white trumpets. The stalk is about 2-3 feet high Taken around 6:30 Pm, cloudy skies, pending rain.
09/08/2021: Stays low to ground, blends into lawn, small buds Just looking for the name of weed in pic Thank you!
09/01/2021: About 14" tall, photo taken at 1:30pm. Many of these plants in this area-mostly wind swept open meadow. Had yellow flowers up multiple stalks. Looks like a mini saguaro...but not a cactus.
08/30/2021: flowers are just starting to show on my previous submission.
08/29/2021: This started out as a 6 inch patch near some rocks and in less than a year has taken over 8 x 6 ft of our grass. Can you tell me the name and is there any way to get rid of it? It seems to be growing out of control. Thank you!
08/26/2021: Weed in field not local? Tall
This is Curly Dock that has gone to seed.
08/21/2021: These weeds are throughout my 8 acres how can I get rid of them
08/13/2021: Light purple, weird alien looking, looks to be attached to a weed, about the size of the palm of my hand
08/09/2021: This is a low-lying plant that I haven't been able to identify. The "berries" are about 3/8" diameter, start out kind cream colored and appear to ripen to a purple color. It appears to be kind of viney and not free-standing It's on the side of an open space trail by Hecla pond in Lafayette, CO.
http://www.uwyo.edu/plantsciences/uwplant/forages/legume/cicer-milkvetch.html
08/09/2021: Friday, August 9, 2021 around noon..... most plants are 12-18 inches in height (and just starting to flower).
This is Diffuse Knapweed. Very widespread in Estes Park.
08/08/2021: Nose que es esta planta pero no muere con nada ni glifosato ni sal ni con nada y se extiende por todo y crece aunque la cortes varias veces o la arranques de raíz nace en abril más o menos y en octubre noviembre se seca si me pudierais ayudar a saber que es
08/06/2021: Tall and spindly
This is Toothed Spurge. It's a native annual.
08/06/2021: Grows along river and also up on the flats where our home is.
This is western yarrow. It's a perennial in the sunflower family.
08/03/2021: I came back from vacation after about 3 weeks and found this growing in the perennial garden patch next to my driveway (Irises, Jupiter’s Beard, Shasta Daisies) -August 1, 2021. Picture was taken around 4:30 pm. The leafy part of the plant ranges between 1-2 feet in height and the “cucumber” looking things are roughly 3-5 inches long and very spiky. The leaves themselves are flat and thick. There are three of these plants growing in close proximity. I’ve never seen anything that looks like them before.
This is showy milkweed.
08/03/2021: I came back from vacation after about 3 weeks and found this growing in the perennial garden patch next to my driveway (Irises, Jupiter’s Beard, Shasta Daisies) -August 1, 2021. Picture was taken around 4:30 pm. The leafy part of the plant ranges between 1-2 feet in height and the “cucumber” looking things are roughly 3-5 inches long and very spiky. The leaves themselves are flat and thick. There are three of these plants growing in close proximity. I’ve never seen anything that looks like them before.
This is showy milkweed.
08/01/2021: This plant appeared in my garden in July and grew quickly. Small white flowers growing off of the stems. Biggest leaves are 2-3 inches.
This is Hairy Nightshade. It's an annual. The berries are toxic.
07/29/2021: This plant grows about 6-8" and then flowers. It grows primary in dry cleared areas with little vegetation. Also, it grows in clusters that appear to spread from a rhizome.
07/28/2021: Hi! So we came back after 2 weeks trip, and while we were away these took over a few spots on our backyard. They create a dense coverage with long thick vines. No flowers.
This looks like sweet clover. It can become invasive so I'd remove it.
07/27/2021: Shot at 4 PM, leaves medium dull green, could it be a fox tail?
This looks like bristly foxtail.
07/26/2021: Almost looks like sorghum but is red with a broad weedy base, I see it along roadways and in fields. It is about 3-4 feet tall.
07/20/2021: This seems to be an invasive vine like weed that has shown up only in June, I believe. Pic in mid afternoon on a spot that wasn’t all dead yet. Had nothing like this before. The burrs are a bit over 1/8” and the stems are prickly. I hadn’t notices anything until a few weeks ago in the mostly shaded area that previously had only some mostly short weeds. This grew like crazy, creeping over an area of 30 sq ft or more in a short time - very thick mat of this stuff - and climbs up other plants. Most of the vines seems to be a yard or two long. Was on vacation for 2 weeks and now it is virtually all dead and very dry - nothing else in the area seems to have died.
07/20/2021: Never seen in pasture in 6 years….annual or perennial?
07/20/2021: Photo taken on field on my property in late June this year. Plant about 8 inches tall. In disturbed areas, but also mixed in with perennial grasses in the field.
07/19/2021: This weed is growing in bunches in my front yard. It looks to have really small white/pink flowers on it. Fairly shallow roots. I thought it might be a common chickweed, but I've ruled that out now. Thanks for your help!
This weed is prostrate knotweed. It's an annual weed.
07/18/2021: all day every day I believe flowers are there. extremely tough in the ground...can't pull and husband is also having a very difficult time digging them out. They're like a ground bush and have been around in small doses for the last few years. this year with all our rain, they have spread all over the field and are threatening to take it over completely,
I will need a better photo, or several to make an ID
07/16/2021: Maybe 6" at the highest point, 18" diameter. It was photographed mid-morning. So unusual. I couldn't tell if it was 3 separate plants, or all part of the same plant. Thank you!
07/16/2021: We recently cut down an aspen tree in our backyard and have another aspen where the leaves are not the same so trying to identify this plant. Leaves are heart-shaped, with spikey edges, light green to dark green in color with dark green veins throughout. So far the plant is only about a foot tall but a neighbor has one that appears to be a tree of sorts (same leaves), and it's about 6 feet high.
This looks like a shoot from an aspen. The roots are probably not dead.
07/13/2021: This seed was found in my dogs fur. I think it’s from a wild grass found in our pasture. I do know it burrows into the dog and causes infections. What is it called and how do I get rid of it?
This is from a grass called Needle & Thread grass. It is a native grass.
07/13/2021: 1 inch tall thick ground cover. Non-rhizomatous. Fast growing (tilled twice) little water and these took over very quickly(2 weeks).
07/12/2021: Non irrigated pasture land north of Wellington. This is a smaller one and the larger ones are multiplying in the field and can be 6 to eight feet wide and 4-5 feet tall.
07/12/2021: Small plant about 12” tall took picture in evening dog was eating leaves
Genue Fatoua - here is more info: https://en.wikipedia.org/wiki/Fatoua_villosa
07/12/2021: Plant is 8' tall. Small, yellow dispersed flowers attractive to bees. Please identify this plant. I can't. Robert Molzahn, Biological Sciences, University of Illinois - Chicago Class of 1973
This is common mullein - it's a weed.
07/10/2021: Growing in front lawn and spreading
07/08/2021: 6:30AM, size of plant varies but can be easily 12" in diameter, 3" high with flower stems that grow up a foot. Flower is yellow, just starting to bloom now. Grows in very rocky dry soil to richer soil. The root is wood like, grows very deep. Very invasive. Impossible to dig out, even in moist conditions if plant is established.
07/07/2021: These are tall spiky weeds that the HOA let overgrow the area between subdivisions. They don't think they have responsibility for keeping these areas, even around fire hydrants, free from these weeds.
These weeds are wild or prickly lettuce. Sometimes confused with thistle.
07/07/2021: Size of a pea. Found it in my cattle hay which was teff grass.
No idea what this is. Sorry!
07/05/2021: Covering our hillside ground - about 15-18" plants.
This is nettleleaf goosefoot. This is an annual weed.
07/04/2021: Up to 24" tall, flowers with multiple thin rays and thin yellow stamens(?) in center. Spiral branching pattern, fuzzy stems. Very fuzzy elongate leaves with wavy edges. Tenaciously adhere to most surfaces. Impossible to remove from knitted fabrics. What is it, is it invasive, and is there any reason not to eliminate it?
07/04/2021: 6-10 inches, starts green with small white flowers at tips of branches. Flowers progress to flat papery disks about 1/4" diameter that stick to everything. Is there any reason not to eliminate it? What is it?
07/04/2021: About 5 feet tall. Taken at midday. There are many smaller plants in the area.
This is some type of tree/shrub sprouting.
07/02/2021: Vines 1-2', small green leaves, small brown 1/16" burrs, attaches to gloves, clothes, horse masks, poodle dog coat, very difficult to remove.
07/02/2021: I cut my grass yesterday and this morning they had sprung up again.
06/28/2021: Early afternoon approx 1” diameter
06/26/2021: Approximately 3-4’ tall, not prominent in clusters but spread far apart along the edge of the road/field, has small berry like buds and pink star shaped flowers
06/25/2021: Just started popping up in places where native grasses have been removed/disturbed - but seems to be thriving in full sun (also looks the same throughout the day). Very few ray petals on the flower, hexagonal stem, small hairs on the leaves. No strong scent to either the blooms or the foliage.
06/25/2021: Small leaves 3/4 inch. Appears to be a ground cover. The lupine on left gives idea of scale
These look like a perennial groundcover called "Pussytoes".
06/23/2021: This plant has very fuzzy leaves. It reminds me of yarrow but the flowers, just getting ready to bloom, appear to be white. These are in a very exposed location for sun and wind, in poor, well drained soil. (Sandy silt)
This is Western or Common Yarrow. Common Yarrow has white flowers
06/23/2021: This plants is growing in disturbed soil beneath ponderosa pines (i.e. poor soil), in full morning and midday sun. Its downwind of failed wildflower planting attempts and I can’t find anything similar online or on the seed list. The flowers are either white or very pale pink. The stem is hairy and leaves less so. The flower cluster sprouts out of a misshapen ball.
06/23/2021: Taken 3:45 pm, getting very thick in front and back lawn. crabapple and pear tree nearby, yard backs to drainage canal, open space with lots of plants and other gardens.
06/23/2021: In bottomland
This is Giant Ragweed. It's a native annual.
06/23/2021: This plant is growing all over my back yard; short roots, not connected to each other; hairy/sharp thorns on stem, grows about a foot tall.
06/23/2021: Creeper that grows on the lawn with shallow roots
This is Field Bindweed.
06/22/2021: Picked at 8pm, occurs in the pasture in spots clear of native grasses. Rejected by cows, 2inches tall, 3-4 inches wide, thicker than grass, grows in groups in very wet area
We cannot ID this - try CSU extension
06/21/2021: 6" to 12" high. Grows aggressively from roots. Pulling does not set it back. Only by turning over soil and removing all roots seems to be effective. Spreads rapidly. Chokes out other low plants.
06/20/2021: Wraps itself around plants and any object near by. Seems to choke out the plants. Grows quickly.
This looks like Bindweed. It's an annual that spreads rapidy.
06/19/2021: Grows like crazy in the yard and resistant to weed spray so far
We cannot ID this - try your local Extension office
06/19/2021: Weren’t here or visible 3 days ago two of them were hiding in the pine out front and are 4 ft tall now
This looks like a Sumac growing through your Spruce.
06/18/2021: Seems to grow to about 16". We are at an elevation of 7,300', and this seems to grow in highly disturbed areas in our prairie landscape northeast of Livermore. We have 36 acres of horse-grazed land, and this is becoming very prevalent this year. Its seeds are very sticky and a nuisance! Thanks for any help on ID and control.
Catchweed Management Recommendation:
Any type of mechanical removal where the plant can be thrown away would prevent the seeds from spreading. The one plant that was brought in here earlier this week was already producing seeds. If when removing the plant the roots are not pulled up, then followup with 2,4-D within a week or two. Next year, control plant early either by pulling or spraying before flower. There may be a seed source at that spot so it may take several years of control before it will be gone
06/17/2021: Just need to know what kind of thistle so I can treat and what to treat with. Just a small 1/2 acre area
06/15/2021: Growing in pot
Can't ID this - wait until it flowers and maybe try sending again.
06/14/2021: Grows in the yard. Has a seriously long taproot. Makes little white to purplish flowers. Everyone has it in there yard.
This is common mallow.
06/13/2021: This thorny leaves type weed is taking over my yard, it grows up to 2-3 feet with a purple flower.
This is Canada Thistle. Its a noxious weed in Colorado. Remove it.
06/13/2021: Found growing in my fescue grass. With 10 days of rain, my grass is tall. Easy to pull up. I have mini clover with my fescue. Most weeds are choked out. Any other ideas for weed management besides weed n feed?
Check with your local Extension office.
06/11/2021: This year they showed up in numbers. This one is about 7 inches tall and growing.
This looks like they it could be in the Sunflower family.
06/10/2021: It is a dense vine with these strange shoot looking things with black tips.
06/08/2021: About 12" -15" tall, 6pm. We have 36 acres and this plant is covering a good part of the pasture near our home.
06/08/2021: About 12" -15" tall, 6pm. We have 36 acres and this plant is covering a good part of the pasture near our home.
06/06/2021: This plant is invading my pastures, sticks to clothes, dogs & horses, I have lived here for 45 years, this has just become a problem over the last 5 years. What weed control can help without killing my grasses & trees?
06/05/2021: This plant is vigorous and appears in my planting beds, growing to at least 2.5 feet high. Picture was taken today at 6:47 pm. I just don't remember it being so prevalent last year. Thanks for your help!
06/02/2021: 14 inches in photo
06/02/2021: The photo is next to a 1 foot ruler. The plants grow about knee-high and the roots resemble sugar beets
This looks like curly dock but I would like a better photo of the leaves.
06/02/2021: The item shown here is about 14 inches.
05/31/2021: A number of these have popped up in my yard the past week. When I pull them, they break off without the root coming up.
05/29/2021: We started finding this around our garden which is lower ground about 2 - 3 years ago. Looks kind of like an asparagus stalk. The stem is in sections and is hollow inside. Need to know how to kill this and if this is toxic to horses.
This is Field horsetail. Its a perennial and usually grows in damp areas.
05/29/2021: First started seeing this around the garden several years ago. This is the first year we have found it in our corn field. Does not seem as though roundup will kill it. Right now what we picked is about 8" - 10" tall.
05/26/2021: Pic taken 5 pm today. No fuzzy, silvery leaves. No flowers. Covers entire back yard. It appeared in Spring. Was dead in winter. I thought it was Kochia but description of leaves don't match. No fuzzy or silvery leaves. Doesn't have blooms or flowers. Is it a weed or a decent ground cover? Thanks for your help.
This is kochia. It would not be a good ground cover.
05/26/2021: This stuff is taking over my pasture and everybody else's this year. I know it is an annual, non-native mustard but it does not fit descriptions of anything I have found. It is less than 1 foot tall and forms small round seed pods. It has been one of the most prolific early spring weeds. Horses do not eat it. I have heard it referred to as "pennycress" but does not match descriptions of that plant, which has white flowers. Mowing while in flower has slowed it down but it is still everywhere.
05/26/2021: This plant is all over the neighborhood this wet spring. The foliage looks carrot-like, and the flowers are small light pint with burgundy. Thanks!!
05/25/2021: Weed2, Small plant, white-yellow flowers, individual towers from ground. 6-9 inches high
This is yellow alyssum. Its an annual in the Mustard amily.
05/25/2021: grows in clumps. many Tall Spires (2ft) from single base area with small seeds area (3 inches) on top.
This is in the Genus Leymus. It could be a type of wheat grass.
05/25/2021: The weed has a long tall spike with a yellow flower. It grows in clumps that are connected. 9:30 am.
05/24/2021: hello- we recently bought a house where the lawn was not maintained. These weeds popped uo this past week with all the rain and spears like crazy. looks like agrula. Any advice what it is so I can research how to stop it.
05/21/2021: Vine - please see previous submission
This is Virginia Creeper. It's a perennial vine that can become invasive.
05/21/2021: Late afternoon- this 5 leaf vine is growing and choking off larger 8-10’ tall forsythia and lilacs. The vines are both on the ground and already up on the tops of the established shrubs. The leaves are about 3” long. Is this Virginia Creeper or another weed?
This is Virginia Creeper. It's a perennail vine but can become invasive.
05/18/2021: This little (parsley looking) plant seeds itself in my mulch every year. Would like to know what it is. It is easily pulled and as you can see grows from a small black seed. It is about the size of my pinky right now.
This could be from a Linden tree seed.
05/18/2021: Long stem,short roots, 2 green leaves. Grows very fast. Cut a small slit in a weed blocker drape for seeds and these grew within a week.
05/16/2021: Long, stem fuzzy, leaves long and thin while also fuzzy, 3PM. Chickens really like to eat them.
05/16/2021: Broadleaf, roots have a oranges color
05/15/2021: We broadcast some mountain meadow mix grass seed last year and this year mostly what came up are these weeds with small purple flowers. My husband thinks they’re goatheads but the only goathead pics I can find have yellow flowers
This is red stem filaree. Goatheads do have yellow flowers.
05/15/2021: These two have been growing in my garden for a bit. I know it's not a veggie I planted and just pulled today. Haven't seen them elsewhere in the yard. Hairy with serrated leaves and a single taproot.
05/14/2021: Grows in the grass, think it may have been in the grass seed because it's sprouting up where I seeded. Typically has several stems growing out of one central spot, stems can be 3 inches or so, a bunch of small leaves up the stem every half inch or so. My wife says it resembles thyme. I have not yet seen it flower, looks like bigger ones might be close.
I think this may be ivy leaf speedwell.
05/14/2021: This little sprout has grown in the garden bed, and since we moved last summer, I have no idea what it is. It may be a flower. It may be a weed. Planning to yank it, because I think I want that space for tomatoes… But I could be swayed depending what you all think it is. Thank you so much for your help!
That looks like cutleaf nightshade. Its a weed so I'd get rid of it.
05/14/2021: This is spreading all over our river rock landscape, in a new house that we did not experience spring in yet. I’m assuming it’s a weed from the open space that our property borders, but if it’s a nice and well behaved groundcover, I might let it stay :-) Area gets full sun, and has clay soil.
This is kochia. It's an annual that spreads by seed.
05/14/2021: This has been growing since the weather got warmer, it looks to have small, yellow blossoms. Leaves are a pale green, and look fuzzy, or soft. Not glossy. It is close to the cobble landscape rocks, in clay soil and full sun. I will be submitting another photo of what it might have started like, because we have lots of sprouts on the other side of the property.
This is yellow alyssum. It's an annual in the mustard family.
05/12/2021: I believe this is from genus galium, common name sticky willy or velcro weed or cleavers. This picture is of a small plant. It has yellow flowers later spring or early summer, then goes to seed with thousands of sticky little seeds. It has been a tremendous headache for the past 2-3 years growing very quickly and covering a hillside of native grass like a sheet. It appears to be quite sensitive to 2,4-D (Weed-B-Gon)
That is Catchweed Bedstraw, or cleavers etc.
05/12/2021: Multiple patches pulled mid May after 2 rainy days. Peculiar leaf structure with many small purple flowers
This is henbit. It's an annual in the Mint family.
05/11/2021: This is a broadleaf weed that is growing in my back yard. It grows for the length of the growing season and only grows to a height just below the grass blades. It grows in patches and is about a 30 ft radius of an area now but has been growing over the past few years. It's in the sun for about 2/3 to 3/4 of the day.
Digging up with a shovel can work for small infestations. Make sure you get the roots. Monitor to make sure there is no more growth.
If you have creeping bellflower plants in your lawn, you can spray them with an herbicide containing triclopyr, such as Ortho Weed-B-Gone. Triclopyr is a broadleaf herbicide that won’t harm grass, but it will kill garden plants. Products containing glyphosate (RoundUp) may be effective but keep in mind that the chemical kills any broad-leaved plant it touches. If this is a concern, apply glyphosate (RoundUp) carefully to the leaves with a brush or sponge. Otherwise, spray the product directly on the plant.
05/09/2021: Photo shot on cloudy day at 3:44 p.m. This has been blooming for about a week. It seems to come from a single tap root.
That is blue mustard. It's an annual weed.
05/08/2021: These are about 8 inches tall, photo taken around 3 pm. These are very large woody deep root.
That is alfalfa.
05/08/2021: Weed is about 12 inches tall but sprawls when in the ground. I pulled this around 3:00 pm. Has a milky white substance coming out of the root. Very thick root.
05/05/2021: This photo shows a weed that is much denser in a large area of our currently dormant Buffalo Blue Grama grass. We live a couple miles west of Berthoud, CO.
https://www.friendsofthewildflowergarden.org/pages/plants/whitecampion.html
05/04/2021: I notices clumps of these Weeds/Grasses today on my walk at 10:30 am. They are located in the open space near the trail in Highlands Ranch. It is very early spring (we had a bit of snow yesterday) and I am curious what they are.
05/02/2021: Grows profusely in all parts of mulched flower beds
Here are some control methods -
Pulling is generally ineffective, although you may prevent reseeding. You may get the shallow, thread-like roots, but the plant will quickly rebound and send out new growth from the deeper roots. Mow or deadhead creeping bellflower consistently to prevent reseeding. If all else fails, creeping bellflower in gardens may warrant careful application of herbicides. Don’t waste your money on 2,4-D because creeping bellflower tends to be resistant to that chemical. If you have creeping bellflower plants in your lawn, you can spray them with an herbicide containing triclopyr, such as Ortho Weed-B-Gone. Triclopyr is a broadleaf herbicide that won’t harm grass, but it will kill garden plants. Products containing glyphosate may be effective but keep in mind that the chemical kills any broad-leaved plant it touches. If this is a concern, apply glyphosate carefully to the leaves with a brush or sponge. Otherwise, spray the product directly on the plant. Herbicides are most effective when temperatures are between 60 and 85 degrees F. (15-29 C.). University of Minnesota Extension says that late spring and early fall are the best times to apply glyphosate. Choose a warm, non-windy day when no rain is expected for at least 24 hours. You may have to use a product several times to completely eradicate creeping bellflower plants – reapply every week to 10 days until the roots no longer send up new growth. Store remaining herbicides in their original container and out of the reach of children.
04/28/2021: 1-2 inches tall in the middle of the yard, 2-4 inches tall along fences and in mounds free of grass. Continued to grow from Spring to Fall for the last 2 years.
This is creeping Belllower. It's very invasive. It's a perennial.
04/28/2021: 12 inches tall reddish brown color looks like there are forms on the stalky party and some sort of insect cocoon on the top of each stalk 2pm EST
https://www.minnesotawildflowers.info/fern/bracken
04/27/2021: Picture taken during the day.
http://www.amgrow.com.au/problem/fleabane-2/
04/24/2021: This plant started growing couple of moths ago I mowed around it didn’t want to spread it sprayed it with weed killer very heavy barley made it wilt , it got huge 3 foot round , had these massive thorns all over it so I ended up digging it up today and putting in trash can like with card board and shovel ... never seen anything that thorny and terrible grow up by the house , would love to know what it is ? We had some dirt brought in for swimming pool so maybe it came from it ?
Milk thistle identification and control: Silybum marianum - King ...https://kingcounty.gov › services › weed-identification
04/24/2021: This ground cover is new this year and slowly taking over my grass both in the front and back yards Could you tell me how to get rid of it. Thank you.
https://extension.colostate.edu/topic-areas/natural-resources/identification-and-management-of-kochia-and-russian-thistle-6-314/
04/18/2021: I have a lot of these growing in my backyard. I have a wetland right behind my backyard I am not sure if it has anything to do with it. Most of it is small now but seems to grow quite quickly. I dug out underneath and saw that there were branches. It looks like a tree but I am not sure what it is.
https://ag.colorado.gov/conservation/noxious-weeds/noxious-weed-species/japanese-giant-and-bohemian-knotweeds
04/17/2021: I have a ton of this low growing weed? appearing for the first time all over the southwest corner of my yard. The leaves are purple and green, soft, long, and have a fuzzy appearance.
https://weedecology.css.cornell.edu/weed/weed.php?id=8
04/12/2021: Popped up in my lawn. I'm at 6000' and lawn isn't greening up quite yet so it stood out.
04/09/2021: Grow tall Big deep root systems that have finer roots coming off the main roots. Tubular Shoots come off the root - almost like coral in formation. Put poison on the shoot, it dies off but another shoot comes up beside it. If you dig down where this tubular shoot came up for, there is a mass of shoots growing off the root. The plant itself is very easy to break, almost like water based stems. They smell weedy when you break them. Nothing seems to be stopping the spread of it through my yard.
Not sure, but this looks similar to a wild Four O'clock. Here's some info: https://www.minnesotawildflowers.info/flower/wild-four-oclock
04/06/2021: Saw this flower in late March, first flower of the year. Small, about the size of a human thumbnail, with growth very low to the ground.Happens to be growing beneath in Aspen.
https://ag.colorado.gov/conservation/noxious-weeds/noxious-weed-species/redstem-filaree
03/29/2021: There are hundreds of these tiny little weeds (1"-1.5") that look like tiny trees growing in my front yard. They were there last summer, but now they're taking over. The new ones are very easily pulled, but the ones that have been there for a while can be quite attached and they don't seem to get any bigger over time. I applied a week killer about a week ago and these little suckers don't seem phased in the least.
02/16/2021: It effects ROBINIA plants in Broad leaf Nursery. Managed By KPK Forest Department's Billion Trees Tusnami project.. which herbicide will be effective against this.
http://ipm.ucanr.edu/PMG/PESTNOTES/pn7496.html
02/04/2021: Growing in my field. Green even in the winter.
That is Myrtle Spurge - it's a noxious weed that needs to be eradicated.
10/15/2020: Hi, I'm trying to rehab a very small piece of lawn that was let go by previous owners. This weed is fairly prominent in the lawn, and seems to weave its runners underneath the grass but (mostly) above the dirt surface. It's quite hard to see at first, just a smattering of small white flowers. But as you start to pull at it, you can lift / withdraw the runners from the grass and you're left with quite a pervasive plant. There is a central tap root that does pull out 95% of the time if you're gentle. What is this plant, and is there anything I can do to stop its growth short of having to carefully and tediously unweave and yank every plant? I have a couple more photos but it seems I can only upload one here. If you reply I can send the others. Thanks, Toby.
Here's an article from CSU Extension: https://planttalk.colostate.edu/topics/lawns/1526-fall-lawn-weed-control/
10/04/2020: I took photo early this am. It has spread a lot. I don’t know how to get rid of it, even my goats won’t touch it.
09/26/2020: Small white star shape with a sweet smell
09/25/2020: Concerned it is Yellow Star Thistle
09/09/2020: Photo taken in afternoon on 8/14/2020. Plant on parcel owner states being used in an agricultural endeavor for profit.
09/09/2020: Parcel # 85151 23 001 and 002 Please identify the weeds in this photo, Property owner states using parcel for agricultural endeavro. Thank you, Kathy Thornton
This kochia. It's not a noxious weed but it is very invasive.
08/29/2020: So sorry, here is the attached photo for my previous submission. Thanks!
Here is some info from the Extension office -
Better Lawn Care.Com: Prostrate Spurge: http://www.better-lawn-care.com/prostrate-spurge.html#axzz3k5Z1hUhv
Plantalk Colorado: #2118 Herbicides: Pre-emergent: http://www.ext.colostate.edu/ptlk/2118.html
08/27/2020: This weed is all over our yard. It is slightly vine-y and is taking over the yard. Any ideas?
08/27/2020: 2 types of weeds found in new sod. This thick grassy like weed Grows super quick, just mowed last night and it’s sprouting taller than new (1 month) old sod and taking over the lawn. Very thick tube reddish/purplish at vase. Tops split/turned white after mowing. Also some sort of other weed mixed around it that started in the sod gaps and has slowly taken over. Easily pulled. The thick grass is HARD to pull out. How can I get rid of this?
https://planttalk.colostate.edu/topics/lawns/1541-pre-emergent-herbicides-crabgrass-prevention-lawns/
08/23/2020: Plant in image is 10 inches max dimension by about 7.5 inches. It't all over my lawn which is sprinkled. Grows best in full sun. Reddish stem. Leaves 1/4-1/2 inch long. May have very small whitish flower but so small it's hard to see.
The healthier your lawn, the less invasive this will be. It is very common this time of year.
08/22/2020: These are in our neighborhood's common property. Several people have said they're knapweeds but I'm convinced they're Canada (or some other) thistle. No one got pics of them earlier in the season or in bloom. I have lots more pics of leaves and seedheads. Also found galls on leaf petioles.
That is Canada Thistle.
08/18/2020: This was the only example I found on our property. East facing hillside that's arid and gets just about 100% sun. Sorry for no scale but the fruit / seed pods / whatever they are are about 1/4" or a little larger in diameter. Bush was about 1 foot tall. Kinda looks like a tomato and we have a small intentional cluster of tomatoes about 50' from where this one was, but our current tomatoes are ugly hierlooms not perfect little spheres like this. Is it something in the nightshade family?
That is a cutleaf nightshade. It is an annual. It contains toxic alkaloids.
08/13/2020: chickens go crazy for it
That is kochia. It's an annual weed that spreads by seed.
08/12/2020: Viney weed continuously grows through grass all summer. Put down Weed and Feed. Doesn’t seem to stop the weed. I sit in grass and try to pull by the root but they just grow back.
https://planttalk.colostate.edu/topics/lawns/1552-bindweed-control-lawns/
08/10/2020: Plant is about a foot tall. Looks like it may be the start of some sort of tree? There are similar shoots beginning right next to it. I have found others around the same patch of the yard. This is a newly prepared patch. I pulled up sod last summer, over wintered new soil and mulch. This is a volunteer. I saw it first about 2 weeks ago. Found the new shoots under the mulch on Sunday. This photo was taken this afternoon 5pm.
This looks like a "sucker" or sprout from an Aspen tree.
08/08/2020: 3 - 4 feet tall Red/green thick stalks Little yellow flowers 11:15 am
This is Kochia - it's an annual in the goosefoot family.
08/02/2020: Rose everywhere in between stone walkways
07/31/2020: 4:30pm: Grow to about 3 feet tall, seems to grow anywhere where there is exposed ground and lots of sunlight. Grows very quickly and gets bushy when mowed down.
07/29/2020: leaves about 1 inches across. Grows 6 inches high. Weak leaf stems grow directly out of the root. Roots are tuberous.
That is wild violet
07/29/2020: Spreads quickly and takes over grass
That looks like kochia growing in the grass.
07/28/2020: There's a ruler, 4:30pm. Growing on my leach field and squeezing out my good grass. Fortunately,the leach field has soft dirt and it full root come up and it is very long. Similar to previous submission that was called Prostrate Spurge. Is that it?
That is field Bindweed
07/25/2020: These are growing in random spots in our lawn, usually close to clover and in grass that is thriving, not the dry areas.
07/22/2020: These have a height of 12-18" approximately. The photo was taken in late afternoon. My property also has cheek grass, bindweed and several other unidentified weeds/grass
That is kochia
07/19/2020: will grow to 24" if left alone, growing in my lawn, 2,4d stunts it for a bit but comes right back. We keep it mowed, a 3" plant does just fine. How do I get rid of it?
If you do not treat your lawn each year with weed & feed products, I'd start there. Once the turfgrass is healthy and growing well it should choke out the kochia and other weeds.
If you can find an herbicide with Fluroxpyr in it that will work. You'll have to make sure it is labeled for use on turf.
07/14/2020: This weed grows flat. This particular weed is about 7" across. Has a red stem/vine.
Both these weeds are growing now in turf and garden areas. If you are pulling try to get the roots. They are both annuals.
I couldn't enlarge the photo enough but sure it's one of the two.
07/09/2020: the leaves are 3.14", the plant itself shot up to 11". with a thick 'hairy' stem (i had planted cucumber, estragon, marjoram, melissa, sage, oregano, thyme, savory, dracocephalum - and this plant grew along, maybe there was something in the store-bought soil).
07/08/2020: plant 2-3'tall tough stems yellow flowers
That is yellow sweetclover. It's not a noxious weed.
07/08/2020: plant approx 2-3' tall very tough stem yellow flowers Can I add another photo?
That is yellow sweetclover. It's not a noxious weed.
07/06/2020: I was a turf manager for 27 years, and don't ever remember having to deal with this weed. This plant is 6 inches tall above ground, but I doubt it is fully grown. It appears to be spreading from seed, but I haven't seen it flower. It tolerates mowing. It has a slightly woody stem as it matures, is fairly shallow-rooted, and pulls easily in damp soil. It formed a dense matt in the irrigated turf, choking out the turf in the area. At first I thought it was Lambsquarters, but now I'm pretty sure that is not correct. It's growing primarily in the turf, but this sample was pulled from a perennial bed next to the turf. Thanks!
This looks like lambsquarters.
07/02/2020: This very fast growing stalky plant has proliferated my yard. it grows so fast i can barely keep it mowed down.
That is kochia
07/02/2020: I can’t get rid of this with Barrier weed killer which is supposed to kill for 1 year.
06/26/2020: These are new weeds within the last couple of years just north of the trail at Cathy Fromme and are taking over pretty quickly. Area of at least 15’ x 15’. Up to 2’ tall or so. I need more information, as I want to get my HOA to get rid of them if they are noxious.
Those weeds are Common Mullein. They are not noxious but very invasive.
06/23/2020: These are approximately 18 inches tall, white flowers that have started to seed. Very pointed, sharp leaves with a smooth plant stalk. What are these?
This is Canada thistle
06/23/2020: Another cluster of what appear to be thistles along the Louden Ditch between Ridgeway Drive and Anapolis in Highland Meadows. What are these?
Musk Thistle
06/23/2020: I noticed these growing along the Louden ditch between Ridgeway Drive and Anapolis (in Highland Meadows). What are they?
Canada Thistle
06/20/2020: Small plants, growing over a lot of my garden bed.
06/16/2020: Palmate lobbed leaves alternate arrangements no milky residue. Tiny spines on round stem some touches of red on stems and at base of leaf. Not shiny nor fuzzy leaves and no spines on leaves. More leaves sprout at base of leaf where it meets stem. Upright plant grows extremely fast. Bright full sun area in sandy soil. I'm not sure if I planted these in my garden but there are a few sprouting up.
These are weeds.
06/08/2020: Sorry. Last image was over 2MB in size.
That looks like a sprout from an Aspen tree
06/08/2020: Heart shaped leaves, similar in size to aspen leaves. Has a taproot that seems to go to China, and has been coming up everywhere for the last couple of years. No matter how deeply I dig, I'm unable to get all of it with a dandelion tool, so it breaks off underground to come up AGAIN. In the lawn, in the newly planted flowerbed, everywhere. It's like some kind of a wild tree in appearance. Some of the leaves have pinkish colored veins on the top side.
06/06/2020: Grows in disturb soil
06/03/2020: Weed grows closer to ground. Main branch will have 5-8 shoots with round seed pods at the end of the shoot. Early stage pod is filled with white sticky liquid. No flowers that I can see. Small reddish spire grow out of the pod. Typically clump grows about 5-6 inches and each shoot is about 3-4 inches long off Main branch.
05/29/2020: Taken at 8:00 am. It only seems to bloom in the morning. I’m thinking it’s a weed as I did not plant this.
05/28/2020: Will Milestone kill/control these?
05/24/2020: This is early spring version. These get about four feet tall with stickers. Probably introduced into chicken yard with bedding straw.
http://ptrpest.com/weed/malvella_leprosa/malvella_leprosa.html
05/21/2020: These pictures were taken this morning around 10:00am. They are located in various areas around our house. All are relatively small patches here and there. We would like to know what chemicals and the dosage to kill these weeds. My number is 954-410-8038. Thanks so much for your help
05/18/2020: Photo taken today. There are large amounts of this in the native grass in open areas where we live. This is in an area that was reworked last summer and hydro seeded in the fall. Landscaper could not produce seed mix for my review. Plants range from a few inches tall to over a foot. This one is about 8”. Pulls easily.
05/17/2020: is this a noxious weed? They tend to clump. I have several in one area. I haven't lived here very long so I'm still figuring out what was intentional plantings and what are weeds. Taken at noon today. had velvet like foliage and purple flowers that the bees seem to love. They're about 4'6" tall
If you'd like to use an herbicide 2,4-D will work.
05/13/2020: There are a lot of them. hard to kill.
05/10/2020: Small low growing early to appear
http://www.easterncoloradowildflowers.com/Musineon_divaricatum.htm
05/09/2020: These weeds are taking over my grass, killing large sections. They come back worse when removed and are resistant to 24D. If allowed to mature they look like tumbleweeds.
05/08/2020: I think this might be leafy spurge or flixweed but unsure. It is in multiple areas on our small farm and moving into a grass hay field that I cut and bale. It was in last years harvest and animals don't like it. I would like to spray with something that won't affect its use as feed when harvested in mid to late June. A recommendation on control would be appreciated.
That is Flixweed. You can use Telar or Escort on Flixweed and it's safe to use on the hay.
05/07/2020: 3 inches bottom leaf to top of flower.
That is yellow alyssum. It's an annual in the mustard family.
05/06/2020: From plant base to top of flower stalk, ~10-12 inches; whorled, slightly serrated leaves (although not prickly), appears to be an annual as it is not deep rooted, series of small white flowers that open from outward to inward. Could this be Hoary Cress?
You can use an herbicide called "escort" to get rid of it. It must be applied at the flowering stage. Mowing repeatedly during the growing season if not using an herbicide to control in
spring/summer timeframe will help.
05/05/2020: These plants will grow up to about 8-10” tall and wide. They have spines on them, so you definitely need gloves to handle them. These are in the lawn but are also along the fields nearby. I thought they may be Canada thistle, but they don’t have the extreme serrations on the leaves...and I couldn’t find any other thistle that looks the same. Any help would be appreciated.
There are not many herbicides for turf that will kill thistle.
05/03/2020: These came up in our flower bed under our tree. Suspect weeds, but would be interested in ID before I pull them?
This is a weed. Curly Dock.
04/27/2020: This grass-like weed has shown up in a pasture this year. Haven't seen it in my 30 years here. Is it cheatgrass or something else? What do I control it with without damaging surrounding pasture grass?
I sell Plateau here at our office. If you need more info, let me know.
04/26/2020: Stands about a foot tall, tiny purple flowers (ball on end of pin). Fuzzy leaves but prickly stem
04/13/2020: This weed seems to have woody stems that produce a spike like airy flower. The flowering top is also brittle with whiteish flowers/seeds. It is taking over my pasture. This spring I see a large amount of low green growth where the woody stems with whiteish seeds are left from last year. The woody parts in the pic are the stems from last year. The woody flowering stems that rise up from the ground are brittle and for the most part are easy to break off by hand or even pull up. However, this year there is an obvious green growth around where the stems from last season are. I want to eradicate this as it becoming more prolific. I look forward to your advice.
We have an herbicide called E-2 which is a 2-4,D Dicamba mixture with flouroxpyr that works well on Kochia. It has become resistant to many herbicides over the years. If you want to discuss herbicides, call me at the office 970-498-5768.
10/26/2019: Wondering how to treat or prevent this from coming back I believe it might be goat heads we had them at our farm in Brighton and I’d like to take care of them as quickly as possible before they hatch if you know what I mean
10/17/2019: 12" to 24", mostly already gone to send by the time i saw it in late Aug. No spine or thorns under flowers. It was also near a yellow flower, similar looking plant, but not 100% certain it is the same plant. these photos in late afternoon, end Aug. A person on FB thought it could be Western Mugwort, others said could be Goldenrod, Rabbit Brush, or Snake Weed. So basically no clue. Hope you can help, thanks!
https://extension.usu.edu/rangeplants/shrubs-and-trees/Broom_Snakeweed.
09/26/2019: Found in pasture, largest clump about a foot high and wide, would like to know if it is safe for horses and how to eradicate.
08/28/2019: Wondering if someone knows what this “parasite” is. The host plant is spotted knapweed or a diffuse/ spotted hybrid but I think the former. Whatever it is, it has prevented the hist plant from flowering. Wondering what it is and if I can get more. Thanks, Larry Higgins
08/14/2019: Almost certain it's in the nightshade (Solanaceae) family. Grows erect when young, but becomes rather prostrate as it grows larger; the largest one I've seen is about two feet in radius and the roots are relatively shallow with a taproot extending six inches, max. The fruits are small (1/2 centimeter) mottled green berries that grow in clumps of about 3-8. They plague our bare-root production fields at the CSFS nursery, comprising about half of 3.5 acres of land along with with redroot pigweed, kochia, and skeleton leaf bursage.
07/25/2019: I am pretty sure this is a Tree of Heaven? I saw a lot of these in NE Kansas, but none here. Originally I thought it was a sumac, but the bark does not look right, and the parent plant is way too big. Several others are in the immediate area. Please confirm for me. Thanks. Lee Martin, 970-667-6286 x1216
07/18/2019: We were gone 10 days and these came up through landscape fabric and rocks... it seems like hundreds. The neighbors had them first and now they are all over. I don't use weed killer but I don't think I can get ahead of this. Is there something you could recommend? Thank you
If you want to use roundup that will work on it, but it will also kill any other plant it touches. I believe there is a lot of it this year because of all
the moisture we've had.
07/15/2019: Vine covering the ground, seems to grow quickly, as patch has tripled in size in about a week. Leaves seem to be between 2/3 to 1.5 inches in size. Having trouble identifying online with pictures. Any ideas what this might be? Thanks!
Field bindweed is a non-native deep-rooted perennial that reproduces from seed and creeping, horizontal roots (rhizomes). Field bindweed stems are prostrate (grows low to the ground) and twining, and grow up to 6 feet long. Leaves are distinguishable by their arrowhead shape. The flowers are bell or trumpet-shaped, white to pink in color, and are about 1 inch long. Field Bindweed seeds can remain viable in the soil for up to 40 years.
07/11/2019: This was taken around 1pm. Each leaf is about 1/2" in diameter. Very low growing ... hugs the ground. These are all over the yard I'm reseeding with drought resistant grass. They get many inches around, several inches from a central stalk, and are hard to pull out by the roots. I've just been ripping the leaves off mostly. The black hose in the one photo is 1/2" drip line, for size reference. Thanks! Kim
07/04/2019: This is the first year I have seen this weed. the leaves look sort of like an oak! Thanks for taking a look. MaryLou
This is cutleaf nightshade which is an annual plant.
07/03/2019: Like fine straw. Took over pasture area that was graded and spread during several dry years. Roughly 1/2 acre or so and increasing. Pasture depends on rainfall only. Any reasonable was to control this? Thanks for any assistance.
We have an herbicide here called Plateau that can be put down in August (late summer) as a pre-emergent if it is cheatgrass..
07/03/2019: 8:36 am. This weed is found in my yard, where the rabbits feed on the grass. It grows and spreads rapidly, quickly overtaking an area. I believe in the photo you can see the scale of the weed leaf compared to grass. This infestation is approx. 3 X 3 ft. We have multiple smaller infestations throughout the yard. The weed is no taller than the grass. It does not respond well to turf weed and feed products. Thank you for your help. I appreciate it.
we are not turf experts here, but this looks like crabgrass or goosegrass. You can get more info by contacting the CSU extension office.
Here is a video that you may find helpful -
https://www.youtube.com/watch?v=HT0ugchDQ8U
06/24/2019: In the picture there are car keys as a reference on size. Picture was taken in the afternoon. In the picture are some that were pulled to show the roots along side with the weeds in the ground.
06/17/2019: Viney weed. Heavy mounds of vines. Feeling of velcrow when touched, kinda sticky. Seed pods look as though they are prickly, but they arent.
http://www.idahoweedawareness.net/wow/02_02_15.html
06/16/2019: also all over masonville and people call it snakeweed or rabbit brush or another mustard. I don't believe it's snakeweed or rabbit brush though.
This is flixweed, a winter annual in the mustard family.
06/16/2019: This is all over masonville and people call it various things.
This is Flixweed, a winter annual in the mustard family.
06/12/2019: 2:30 PM today. large infiltration - several plants - each 18" to 24" Concern: is this houndstongue? Should we try to eradicate it?
This is not houndstongue - it actually looks like something from the campanula/bellflower family which is an ornamental
06/06/2019: I’m not sure what these weeds are
That is Curly Dock.
05/30/2019: All over my yard from 5 to 10 inches tall
05/23/2019: Plants are growing under trees near creek. Young plants are upright with bright green leaves, then stems become "hairy" and lay down more like a vine. The seed pods appear spiny but soft. Flowers are light purple or whitish. They seem to be quite aggressive and are trying to over run the grass by the creek. They look similar to purple mustard in some ways, but rounder leaves and different formation of plant. Attached photo is from last year with the forming seed heads. Usually sprout early spring and grow very fast.
http://ipm.ucanr.edu/PMG/PESTNOTES/pn74154.html
05/23/2019: Plants are growing under trees near creek. Young plants are upright with bright green leaves, then stems become "hairy" and lay down more like a vine. The seed pods appear spiny but soft. Flowers are light purple or whitish. They seem to be quite aggressive and are trying to over run the grass by the creek. They look similar to purple mustard in some ways, but rounder leaves and different formation of plant. Attached photo is from last year with the forming seed heads. Usually sprout early spring and grow very fast.
http://ipm.ucanr.edu/PMG/PESTNOTES/pn74154.html
05/17/2019: This is a weed that I have growing in my aspen groves. It grows very tall. 4-5 feet tall. The leafs become very large. When it dies in the late fall it leaves a tall hollow woody white stem. The mature plants shades the ground so grasses can’t get sunlight. I can’t find it in any of my weed identification books. Thanks for you assistance Steve Goodroad
05/16/2019: Hello, This is a picture of a weed I am fighting for the third year now. This one was taken across the street from me. It is a bit droopy because I recently sprayed it. The weed is very aggressive. It kills everything else out very quickly. I am in the process of spraying my property again, but the plant is coming to me repeatedly from outside my property. When I spray it dies off, but I cannot spray the neighboring properties. I think it might have started from a horse that used to be in the neighborhood north of me. The plant has taken completely over areas north of me. I also think it might be providing a home for some kind of aggressive bug. The last two years I had instances where I received multiple bug bites on my legs when I was working on my property. That had never happened before I saw this plant, and I have lived here for most of 30 years. My address is 2716 2nd St., but it is very prolific north of me. Please let me know what I can do. Thank you. Harry Spurrier
05/16/2019: Photo was taken at approximately 10:15am. Specimen in the photo measures 21 inches in height, however there are specimens on the property that measure 40+ inches high. Plants are growing on the south side of the house in an area approximately 15ft x 10ft, both in the yard grass and right up against the house itself. I consider the plant's growth rate to be relatively fast and it has proven impervious to weed killer. No flowers or seeds have yet been noted. I would appreciate any management recommendations you have. --thanks!
Tthis is red root pigweed. A 2, 4-D herbicide should work on this.
05/15/2019: Photo taken 5:00 pm 5/14/19. My backyard. Yard is typical grass with this weed infestation. Approximately 500 plants in 30’ x 30’ area. Plant is single rooted. Plant is difficult to pull out. When soil is loosened about 4-5 inches of root comes out before it breaks off. Leaves have small “thorns”. Scott’s turfbuilder with Halts does not affect these plants. Plants survive through winter. Any suggestions on eradication would be great. Thank you!
05/13/2019: Close-up of weedy invasive from neighbor's house. I believe it has purple bell-shaped flowers later in summer. (Message 2 of 2.)
I'd think something Like Ortho weed be gone would take care of it - what have you used on it? It kills weeds not the lawn.
(Yes, I think that is it. Looked it up on other sites and it fits my description and experience. Thank you!)
05/13/2019: This is an invasive plants that comes over from my neighbor's yard every year, no matter what I do to weed it out each spring. It takes over in my front and back yard. Can you tell me what it is, and is there a way to eradicate it/manage it efficiently? It takes over lawn and flower beds and chokes everything out. The leaves are alternate and they pull up easily when the ground is wet, but a friend recently told me they are attached to a rhizome that is deeper in the soil that is much harder to get. Thank you! PS I tried to upload 3 pics total but your system only allows one. Pls let me know if you need other to ID.
I'd think something Like Ortho weed be gone would take care of it - what have you used on it? It kills weeds not the lawn.
05/08/2019: This is a larger picture of the area where the Spurge is growing. You can see the weeds by the electric and phone boxes. We have also seen this weed in other areas of Sedona Hills subdivision, near Sedona Hills Drive and Snowy Ridge Lane and Verde Valley Court. My wife (Marguerite) or I can show you if you want.
05/08/2019: About 2:45PM. I don't know who owns this property. I live in the Sedona Hills subdivision at 5578 Sandia Lane. Is this a spurge weed? I will send a second picture of the area where I found this weed.
05/07/2019: Approximately 8" tall by 6" base width at 3:36 PM. Not particularly scratchy. Fibrous root system.
That's Hoary Cress - a noxious weed.
04/25/2019: This weed has taken over my pasture as well as my neighbor. I need help identifying it. Approximately 4-6" average with a yellow flower that turns into a disk like seed pod. Leaves are small and oval shaped.
That is a yellow alyssum, or mustard weed. Its an annual weed
04/20/2019: This weed has a deep and extensive root system. Right now it is in a 20x20 ft flower bed and I can't dig it up because it goes so deep. Above ground it is a vine like stem. Last summer it took over with white/purple blooms. Has surface runners and deep roots, some the size of my little finger. Leaves are fern looking with long narrow leaves each side of the stem. What is the best procedure to get rid of this. Thank you, Gary
Ir may be field bindweed as the description of the flowers seem to fit.
11/28/2018: This plant is approx 18" in diameter though there are many both smaller and larger on the property. They grow mainly in the pastures or where they get a lot of direct sun. This is the first year I have been aware of them and they spread and grow quickly. Photo taken approx 5:30 PM.
09/19/2018: See previous pic sent by me
extension.colostate.edu/
09/19/2018: About 15 feet tall and 10 wide and healthy. I have 3 more pics of needed. Thank you John
extension.colostate.edu/
09/19/2018: Appears to be similar to myrtle spurge? Located on Berthoud Lake Ranchettes HOA common area.
09/14/2018: 5pm. In front of my house. I have a lot of them in different sizes.
The other weed at bottom of photo is Musk thistle - also needs to be removed before it spreads. These are both noxious weeds and need to be removed.
08/05/2018: This is a viney weed that spreads through the root system. I think it has a white flower when it matures.
08/05/2018: This weedy grass formally was only in dry areas of our lawn, but now it's spreading all over. When it matures, it has a long, oval tuft.
08/05/2018: It grows largest in our rock borders, but it is infiltrating our lawn in many places this year.
07/05/2018: The plant has thorns on the stalk, the seed pod is round with spikes. They grow from 4 to 18 inches in height.
This is Buffalobur. It's a native annual.
07/03/2018: I know you guys deal with larger scale weeds in natural areas, but hoping I can get an ID on this weed in my lawn so I can apply the correct weed killer. Viney weed throughout, would not call it patchy.
That field bindweed - find an herbicide for lawns with Quniclorac in it.
06/10/2018: I am from South Carolina and grew up seeing all kinds of pigweeds. I have not seen any in this county and I know how much of a problem this weed can become. I am also an applicator for habitat management in Denver and look at plenty of weeds every day. I’d be interested in your opinion because I own a home that abuts this park and it’s construction has introduced cheatgrass, curly dock, and now pig weed throughout this neighborhood. The compmay managing it has certainly sprayed but I don’t think they know what they could be dealing with. I would appreciate your opinion since I have no idea if pigweed exists in the county as it’s not listed on your species list. Thanks guys, have a great day.
06/03/2018: I noticed this plant in multiple spots along the road, mixed in with the cheatgrass and prickly lettuce. It almost looks like a grass, with leaves about 1/2” wide — but I’m not sure it’s grass.
That is Buckhorn Plantain
05/25/2018: Blue flowers in spring, then becomes vining and develops burs.
Scorpion grasses
Myosotis is a genus of flowering plants in the family Boraginaceae. In the northern hemisphere they are colloquially denominated forget-me-nots or Scorpion grasses.
Scientific name: Myosotis
Higher classification: Borages
Rank: Genus
05/11/2018: Hello, We have been dealing with this weed in a large bed for several seasons in a row (since we moved in). We have sprayed it numerous times (maybe twice two years ago and three times last year) really thoroughly with several products recommended at the store and mulched over it. It kills it at first but the darn thing keeps coming back stronger than ever! It continues to spread and is taking over the entire bed. Would really appreciate some advice to get rid of it. Thanks so much, Gordon
If you dig it up , keep checking back for new sprouts and treat them with Round Up. I also read that using an herbicide with tricloypyr in it would get rid of it after several treatments but it may harm the other stuff in the bed so read the label carefully. There are some ready to use products with Tricloypyr at Lowes, Walmart etc.
04/26/2018: Profuse flowering vegetation along fence lines. Size: average when flowering ranges from 8 inches to 14 inches. Grows in poor soil. Has a light yellow, small flowering heads.
10/23/2017: Growing along ditch
This is Canada thistle.
