Jepson Herbarium
		University of California, Berkeley

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Indexes to all accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Annual to shrub; sap pungent, watery.
Leaf: generally simple, alternate; generally both basal, cauline; stipules 0.
Inflorescence: generally raceme, generally not bracted.
Flower: bisexual, generally radial; sepals 4, generally free; petals (0)4, forming a cross, generally white or yellow to purple; stamens generally 6 (2 or 4), 4 long, 2 short (3 pairs of unequal length); ovary 1, superior, generally 2-chambered with septum connecting 2 parietal placentas; style 1, stigma entire or 2-lobed.
Fruit: capsule, generally 2-valved, "silique" (length >= 3 × width) or "silicle" (length < 3 × width), dehiscent by 2 valves or indehiscent, cylindric or flat parallel or perpendicular to septum, segmented or not.
Seed: 1–many, in 1 or 2 rows per chamber, winged or wingless; embryo strongly curved.
± 330 genera, 3780 species: worldwide, especially temperate. [Al-Shehbaz et al. 2006 Plant Syst Evol 259:89–120] Highest diversity in Medit area, mtns of sw Asia, adjacent c Asia, w North America; some Brassica species are oil or vegetable crops; Arabidopsis thaliana used in experimental molecular biology; many species are ornamentals, weeds. Aurinia saxatilis (L.) Desvaux in cultivation only. Aubrieta occasional waif in c NCoR, Carrichtera annua (L.) DC. in SCo, Iberis sempervirens L., Iberis umbellata L. in PR, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in s NCoRO, CCo. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; CA taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Brassicaceae

Annual to perennial herb, glabrous or hairs simple ( forked).
Leaf: basal rosetted or not, petioled, entire, dentate or pinnately lobed, generally deciduous; cauline petioled, or sessile with bases lobed or sagittate.
Inflorescence: elongated.
Flower: calyx urn-shaped or cylindric, sepals erect ( spreading), base sac-like or not; petals yellow, purple, brown, or white, generally channeled, margin wavy or not; stamens in 3 pairs of equal length, or 4 long and 2 short, (all equal), free or filaments of longer pair(s) fused.
Fruit: silique, linear, dehiscent, unsegmented, ± sessile, cylindric (flat perpendicular or parallel to septum); stigma entire or 2-lobed.
Seed: 24–210, 1 row per chamber, oblong to ovate (± spheric), plump, wing 0.
17 species: sw US, nw Mex. (Greek: stem flower, in reference to insertion of flowers along stem)

Annual, glabrous, glaucous.
Stem: erect, 0.4–11 dm, not inflated.
Leaf: basal rosetted, 1.5–10 cm, obovate to oblanceolate, margin dentate; cauline sessile, bases lobed to clasping, dentate or entire.
Inflorescence: terminal sterile flower cluster 0.
Flower: sepals 4–9 mm, purple or ± yellow; petals 10–18 mm, tips generally reflexed, distal pair longer, ± purple, proximal generally straw-colored or paler purple, margins wavy; stamens in 3 pairs of unequal length, filaments free.
Fruit: ascending to spreading, 4.5–14(16.7) cm, 1–1.5 mm wide, generally cylindric; style to 0.4 mm, stigma ± entire; pedicel spreading to ascending, 2.5–19 mm.
Seed: 40–92, 1.4–2.2 mm, oblong; cotyledons entire.
2n=28. Chaparral, open, sandy or rocky areas, serpentine, granitic and shale scree; 800–2900 m. s Outer South Coast Ranges, Transverse Ranges.

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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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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.