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(Last Modified On 11/12/2012)
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(Last Modified On 11/12/2012)
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Species
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LEPIDIUM VIRGINICUM L.
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PlaceOfPublication
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Sp. P1. 645. 1753.
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Description
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Annual; stems freely branched, 1.5-6 dm. high, sparsely pubescent above with minute trichomes; lower leaves irregularly toothed to pinnately divided; upper leaves oblanceolate, acute, irregularly toothed or serrate to almost entire, cuneate at base, becoming smaller upward; racemes numerous and many-flowered; sepals glabrous to sparsely pubescent, ca. 1 mm. long; petals white, slightly exceeding the sepals; stamens usually 2; fruiting pedicels terete, divaricately ascending to spreading at right angles, glabrous or nearly so, somewhat longer than the fruits; siliques glabrous, orbicular to slightly longer than broad, 2.5-3.5 mm. long, shallowly notched at apex; style included in the shallow notch; seeds wingless; cotyledons accumbent.
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Note
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Typical Lepidium virginicum is native to southeastern North America and the West Indies. The species as a whole has many varieties and is widespread in North America and is found in parts of South America. As a weed, it is even more widely distributed. The following collection belongs to var. typica.
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Specimen
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CHIRIQUf: pasture weed around Alto Lino, vicinity of El Boquete, Maurice 7I2.
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Tag
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Project Name
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