Lepidium didymum |
Lepidium pinnatifidum |
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lesser swinecress, lesser wartcress |
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Habit | Low, spreading, glabrous to scurfy-pubescent annual, the stems freely-branched, decumbent, 2-5 dm. long. | |
Leaves | Leaves alternate, numerous, ovate-oblong, 1.5-3 cm. long, pinnatifid, the segments narrow, entire to pinnatifid. |
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Flowers | Inflorescence of many-flowered, crowded, axillary, bractless racemes 1-4 cm. long; pedicles slender, 1.5-2.5 mm. long; sepals 4, spreading, 0.5 mm. long, deciduous; petals 4, white, linear, minute; stamens 2. |
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Fruit | Silicles strongly wrinkled, 2 mm. broad and 1.5 mm. long, cordate and notched, inflated and slightly obcompressed. |
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Lepidium didymum |
Lepidium pinnatifidum |
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Flowering time | May-July | |
Habitat | Roadsides, gardens and wasteland. | |
Distribution | Occurring west of the Cascades crest in Washington; British Columbia to California, Arizona, and Texas eastward and northward to the Atlantic Coast.
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Origin | Introduced from South America (or possibly Eurasia) | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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