Lepidium draba (weed)

Lepidium • Brassicaceae (weeds) • Eudicotyledons • all weeds • pests-diseases-weeds

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Lepidium draba (click on image to enlarge it)
Source: Flora Batava (1872) - Wikimedia Commons

Lepidium draba (weed) L. - (hoary cress)

This species is a perennial plant, native to Europe and northern Asia, but invasive in North America. It is especially common in north-western North America where it infests rangelands and affects various crops. Research currently focuses on the possible use of biological control agents.

Synonyms:
Cardaria chalepensis
Cardaria draba
Lepidium chalepensis

Vernacular names
• Deutsch:	Pfeilkresse
• English:	hoary cress whitetop
• Français:	passerage drave

• Other images of Lepidium draba (weed) (Wikimedia Commons, IPM Images and Open Media - click to enlarge)
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  Lepidium draba (= Cardaria draba) foliage

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  Lepidium draba (= Cardaria draba) fruits

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  Lepidium draba (= Cardaria draba) seeds (hilum at bottom)

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  Lepidium draba (= Cardaria draba) seeds (marginal view, hilum at bottom)

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  Lepidium draba (= Cardaria draba) infestation

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  infestation