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Key to families | Table of families and genera
Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual [perennial herb]; hairs 0 or simple. Leaf: basal not rosetted, petioled, dentate to 1- or 2-pinnately lobed; distal reduced, sessile or short-petioled, base not lobed. Inflorescence: elongated. Flower: sepals oblong to linear, spreading, base not sac-like; petals yellow, obovate, clawed. Fruit: silique, dehiscent, linear to lanceolate, cylindric, ± 4-angled, or flat parallel to septum, generally constricted between seeds, segmented; terminal segment 1- or 2-seeded or seeds 0; proximal segment few- to several-seeded, valves prominently 3–7-veined; stigma 2-lobed. Seed: 4–16(24), in 1 row, spheric, wingless.
5 species: Mediterranean, Eurasia. (Latin: mustard, from flavor of seeds)
1. Fruit lanceolate, long-bristly, short-hairy; terminal fruit segment flattened, >= proximal segment ..... S. alba
1' Fruit linear, glabrous (sparsely short-hairy); terminal fruit segment conical, << proximal segment ..... S. arvensis
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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