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Lepidium draba is a perennial forb in the mustard family that can grow up to 2 ft. (0.6 m) tall.

Foliage

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.

Flowers

Flowering occurs in early spring to early summer, when white, four-petaled flowers develop in clusters at the apex of the stem.

Fruit

The fruit are heart-shaped seed pods.

Ecological Threat

Lepidium draba 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. This plant 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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Thu, 28 Mar 2024 19:18:04 -0400 Thu, 28 Mar 2024 19:18:04 -0400 http://Images.bugwood.org/ <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459928 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459928 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459117 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459117 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459115 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459115 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459118 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1459118 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149050 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149050 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149047 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149047 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149059 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2149059 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2154015 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2154015 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5306088 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5306088 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5204036 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5204036 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5204035 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5204035 <![CDATA[hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5376352 hoary cress Lepidium draba]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5376352