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Key to families | Table of families and genera
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, generally cushion- or mat-forming, occasionally scapose, hairs simple, forked, or many-branched.Key to Draba
Leaf: basal generally rosetted; cauline entire or shallowly toothed, base generally not lobed, occasionally 0.
Inflorescence: generally many-flowered, elongated or not; bracts generally 0.
Flower: sepals bases equal; petals generally short-clawed, yellow or white (lavender or red).
Fruit: silique or silicle, dehiscent, linear to lanceolate or ovate, occasionally ovoid or spheric, cylindric or flat parallel to septum, unsegmented; stigma entire.
Seed: in 2 rows; wing generally 0.
370+ species: n hemisphere, South America mtns. (Greek: acrid, describing taste of crucifer leaves) [Al-Shehbaz & Windham 2007 Harvard Pap Bot 12:409–419]
Unabridged references: [Beilstein & Windham 2003 Syst Bot 28:584–592; Hitchcock 1941 Univ Washington Publ Biol 11:1–132; Koch & Al-Shehbaz 2002 Ann Missouri Bot Gard 89:88–109; Rollins & Price 1988 Aliso 12:17–27; Schulz 1927 Pflanzenreich IV 105(Heft 89):1–396]
Perennial, tufted, scapose, cushion-forming.
Stem: unbranched, (1)2–6(10) cm, glabrous or hairs sessile, stellate.
Leaf: (2)4–11(15) mm, linear to linear-oblanceolate, entire, midvein prominent, hairs sessile, comb-like, 7–16-rayed, long axis parallel to midvein and branches shorter toward hair tips, adaxial occasionally glabrous; cauline leaves 0.
Inflorescence: 4–12(17)-flowered; axis glabrous or as hairy as stem; pedicels (2)3–10(13) mm.
Flower: sepals 1.5–3 mm; petals 2.5–4 mm, 1.5–3 mm wide, yellow.
Fruit: 3–6(7) mm, ovoid to lanceolate, inflated at least near base, not twisted, puberulent with simple and sessile, generally unequally 2-rayed hairs; style 0.1–0.8(1) mm.
Seed: 6–12, 1.3–1.8 mm, ovoid.
2n=32,64. Common. Alpine barrens, dry slopes, tundra; 2000–3900 m. High Sierra Nevada, n East of Sierra Nevada, White and Inyo Mountains;
Previous taxon: Draba novolympica
Next taxon: Draba praealta
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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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.
| Data provided by the participants of the Consortium of California Herbaria.
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