Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Reed C. Rollins, except as specified

Annual to subshrub
Leaves generally basal and cauline, alternate, generally simple; stipules 0
Inflorescence: generally raceme
Flower bisexual; sepals 4, free; petals (0)4, free, generally white or yellow, often clawed; stamens generally (2,4)6, generally 4 long, 2 short; ovary 1, superior, chambers generally 2, septum membranous, connecting 2 parietal placentas, style 1, stigma simple or 2-lobed
Fruit: generally capsule ("silique") with 2 deciduous valves, sometimes breaking transversely or indehiscent
Seeds 1–many per chamber
Genera in family: 300+ genera, 3000+ species: worldwide, especially cool regions; some cultivated for food (especially Brassica, Raphanus ) and ornamental
Recent taxonomic note: Recently treated to include Capparaceae [Rodman et al. 1993 Ann Missouri Bot Gard 80:686–699; Rollins 1993 Cruciferae of Continental North America. Stanford Univ Press]
Family description, key to genera by Robert A. Price.


Annual; hairs simple or not
Leaves simple; basal lobes 0
Inflorescence spike-like, open
Flower inconspicuous, ± sessile; sepal bases not sac-like; petals spoon-shaped, white
Fruit sessile above receptacle, 2-chambered, tardily dehiscent; beak short-tapered
Seeds 2; embryonic root at edges of both cotyledons
Species in genus: 2 species: Eurasia
Etymology: (Greek: tightly closed, from fruit)


E. syriacum (L.) R. Br.

Plant branched from near base
Stem 1–4 dm, rigid
Leaves: basal rosette 0; cauline with dense, generally simple and forked hairs, lower 1–5 cm, lanceolate, entire to dentate, petioled, upper oblong to oblanceolate, entire to obscurely dentate, sessile
Flower: petals 1–1.3 mm, white
Fruit 2–3 mm, ovate to ± round, plump; hairs dense, simple and forked, whitish; pedicel erect, appressed, stout, 0.7–1 mm; beak curved away from axis
Chromosomes: 2n=14
Ecology: Roadsides, disturbed pastures
Elevation: 1200–1500 m.
Bioregional distribution: s Modoc Plateau (Lassen Co.)
Distribution outside California: to Washington, Colorado; native to Eurasia

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