| 词条 | Lepidium densiflorum |
| 释义 |
|image = Lepidium densiflorum NPS-1.jpg |genus = Lepidium |species = densiflorum |authority = Schrad. }} Lepidium densiflorum is a species of flowering plant in the mustard family known by the common names common pepperweed and prairie peppergrass. It is a common and widespread plant in North America, where it grows in many habitats across Canada and the United States. DescriptionLepidium densiflorum is an annual or biennial herb producing a short, erect, branching stem up to about 30 centimeters in height. Leaves grow in a basal rosette at the base of the stem and reach up to about 10 centimeters long; leaves higher up on the stem are smaller and less prominently lobed. The plant produces raceme inflorescences of tiny flowers with sepals each only about a millimeter long. There are usually no petals, though sometimes vestigial petals appear near the sepals. The fruit is a few millimeters long. External links
11 : Lepidium|Flora of Eastern Canada|Flora of the Eastern United States|Flora of Western Canada|Flora of the Western United States|Flora of California|Flora of the Appalachian Mountains|Flora of the Great Plains (North America)|Flora of the Sierra Nevada (U.S.)|Flora of the California desert regions|Plants described in 1832 |
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