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|Jepson eFlora: Taxon page
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|Family: Brassicaceae (Cruciferae)||View Description||Dichotomous Key|
|Genus: Lepidium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Lepidium didymum L.
Habit: Annual, fetid, glabrous or hairy. Stem: erect to decumbent, few to many from base, 1--4.5(7) dm, branched distally. Leaf: basal not rosetted, early-deciduous, 1--6(8) cm, 1--2-pinnately divided, lobes entire to lobed; mid-cauline short-petioled to +- sessile, 1.5--3.5(4.5) cm, 0.5--1.2 cm wide, gradually reduced and less divided distally, lobes entire to serrate. Inflorescence: elongated, rachis glabrous or hairs straight, cylindric. Flower: sepals 0.5--0.7(0.9) mm; petals 0.4--0.5 mm, elliptic to linear, white; stamens 2. Fruit: 1.3--1.7 mm, 2--2.5 mm wide, spectacle-shaped, flat, wingless, notch 0.2--0.4 mm; valve walls thick, tubercled, glabrous, strongly veined; style 0; pedicel spreading, 1.4--2.5(4) mm, cylindric, glabrous or hairy adaxially. Seed: 1--1.2 mm, ovate. Chromosomes: 2n=32.
Ecology: Common. Disturbed areas, fields, pastures; Elevation: < 1000 m. Bioregional Distribution: CA; Distribution Outside California: North America; native to South America, introduced worldwide. Flowering Time: Mar--Jul
Synonyms: Coronopus didymus (L.) Sm.
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Jepson Online Interchange
Previous taxon: Lepidium dictyotum
Next taxon: Lepidium draba
Citation for this treatment: Ihsan A. Al-Shehbaz 2016. Lepidium didymum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=30511, accessed on October 21, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 21, 2016.