Contains 4 accepted taxa overall.
Characteristics
Classification
Citation
LEPIDIUM Linnaeus, Sp. Pl. 643. 1753.
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TYPE: Lepidium latifolium Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 164. 1913.
Species
| Scientific Name | Common Name | Status | Photos |
|---|---|---|---|
| Lepidium campestre | FIELD PEPPERWEED | Not Native | |
| Lepidium densiflorum | PRAIRIE PEPPERWEED | Not Native FACU (NWPL) | |
| Lepidium didymum | LESSER SWINECRESS | Not Native | |
| Lepidium virginicum | VIRGINIA PEPPERWEED | Native UPL (NWPL) |
[Family identification key]
1. Cauline leaves pinnatisect; fruit schizocarpic, separating at the septum into 2 halves, strongly rugose-veined
1. Cauline leaves mostly simple and entire to dentate, rarely pinnatisect; fruit not schizocarpic, smooth to obscurely veined
2
2. Cauline leaves clasping the stem, the base sagittate to auriculate; fruit (4)5-6.5 mm long
2. Cauline leaves not clasping, the base acute to attenuate; fruit 2-4 mm long
3
3. Petals absent or 0-0.9 mm long; rachises with straight, slender to subclavate trichomes; fruits obovate to obovate-suborbicular, widest beyond middle
3. Petals usually present, rarely rudimentary, 1-2(2.5) mm long; rachises usually with curved, cylindrical trichomes, rarely glabrous; fruits orbicular, widest at middle