Selected images for hoary cress (Lepidium draba )
Hoary cress, or whitetop, is a perennial forb in the mustard family that can grow up to 2 ft. (0.6 m) tall. The leaves are soft, gray-green, 1.5-3 in. (3.7-7.6 cm) long with fine hairs and heart-shaped bases. The lower leaves tend to have more hairs than the upper leaves. The upper leaves clasp to the stem of the plant. Flowering occurs in early spring to early summer, when white, four-petaled flowers develop in clusters at the apex of the stem. The fruit are heart-shaped seed pods. Hoary cress invades rangelands, pastures, streambanks, and open forests primarily in the western United States, although it does occur in the East. It can form large infestations that can displace native species and reduce grazing quality. Hoary cress is native to Central Europe and Western Asia and was first introduced into the United States in the early 20th century.
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2149050 hoary cress Lepidium draba Flower(s) Chris Evans |
1459115 hoary cress Lepidium draba Flower(s) Steve Dewey |
5204036 hoary cress Lepidium draba Foliage Pedro Tenorio-Lezama |
5204035 hoary cress Lepidium draba Foliage Pedro Tenorio-Lezama |
1459118 hoary cress Lepidium draba Flower(s) Steve Dewey |
1459928 hoary cress Lepidium draba Plant(s) Steve Dewey |
2154015 hoary cress Lepidium draba Infestation Montana Statewide Noxious Weed Awareness and Education Program Archive |
2149047 hoary cress Lepidium draba Plant(s) Chris Evans |
2149059 hoary cress Lepidium draba Infestation Chris Evans |
1459117 hoary cress Lepidium draba Feature(s) Steve Dewey |
5306088 hoary cress Lepidium draba Seed(s) Steve Hurst |
5376352 hoary cress Lepidium draba Seed(s) Julia Scher |
