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| Jepson eFlora: Taxon page
Key to families | Table of families and genera |
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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 | |
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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.
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.
Stem: unbranched, 1.5–9 cm, stiff- simple-hairy throughout.
Leaf: 5–20 mm, oblanceolate to obovate, entire, ciliate, both surfaces simple-hairy; cauline leaves 0.
Inflorescence: 4–16-flowered; axis hairy; pedicels 3–7 mm.
Flower: sepals 1.5–2.2 mm, persistent; petals 3.5–5 mm, 1.5–2 mm wide, yellow, persistent.
Fruit: 3.5–7 mm, 2.5–5 mm wide, ovate to ± round, flat, not twisted, hairs simple; style 0.4–1 mm.
Seed: 10–16, 1–1.2 mm, ovoid.
Gravelly areas; 3000–3900 m. s High Sierra Nevada (Fresno, Tulare cos.).
Previous taxon: Draba lonchocarpa
Next taxon: Draba monoensis
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].
Copyright © 2012 Regents of the University of California
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| Bioregions in which taxon occurs | 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. |
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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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