Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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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.


Biennial, perennial herb, erect; hairs simple, sparse, stiff, or 0
Leaves: basal, lower cauline pinnately lobed to ± compound, terminal lobe > lateral; cauline smaller upward, upper sessile, base ± lobed, clasping stem
Inflorescence terminal; bracts 0
Flower: petals yellow
Fruit linear, ± cylindric to ± 4-sided; valves strongly 1-veined base to tip; style 0.5–3 mm, beak-like
Seeds many, 1 row per chamber; wing 0; embryonic root at edges of both cotyledons
Species in genus: ± 20 species: e Eur, sw Asia
Etymology: (Saint Barbara)


B. orthoceras Ledeb.

Biennial, perennial herb; caudex simple
Stem 1–6 dm, branched, stiff, angled
Leaves pinnately lobed; basal < 12 cm, with 2–3 pairs of lateral lobes, terminal lobe ovate, entire or irregularly toothed; cauline less lobed upward, often clasping stem
Flower: petals bright yellow
Fruit erect to spreading-ascending, (1.5)2.5–5 cm, straight; pedicel 2–3 mm, < 1 mm thick; style 0.5–1 mm
Seed ± 1.5 mm
Chromosomes: 2n=16
Ecology: Damp meadows, wet rocks, streambanks, moist woods
Elevation: 700–3350 m.
Bioregional distribution: California Floristic Province (except Great Central Valley), n East of Sierra Nevada, White and Inyo Mountains
Distribution outside California: to Alaska, e N.America, Mexico, also in temperate Asia
Flowering time: May–Sep
Synonyms: var. dolichocarpa Fernald

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bioregional map for BARBAREA%20orthoceras being generated
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Barbarea orthoceras
Retrieve dichotomous key for Barbarea
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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