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Perennial Pepperweed (Lepidium latifolium)

Perennial pepperweed or tall whitetop is a member of the Mustard farmily. It was introduccd from either southern Europe or western Asia. It is a deep-rooted perennial plant with an extensive, vigorous creeping root system which reproduces by seed root stalks. Perennial pepperweed is similar to whitetop, however, it is taller. Perennial pepperweed stands 3 to 5 feet high with a heavy, sometimes woody, crown. The lower leaves are oblong with toothed margins. The upper leaves do not clasp the stem as whitetop. Flowers are white.

Perennial pepperweed can be found in pastures, riparian areas, roadsides, and waste places. It has a limited range in north and south central Colorado from 5,500 to 8,000 feet. In areas where the weed grows in Colorado, such as in the San Luis Valley along the South Platte Drainage, the plant has taken over thousands of acres

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