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BRASSICACEAE (Cruciferae) MUSTARD FAMILY

Ihsan A. Al-Shehbaz, except as noted

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 Mediterranean area, mountains of southwestern Asia, adjacent central Asia, western 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 central North Coast Ranges, Carrichtera annua (L.) DC. in South Coast, Iberis sempervirens L., Iberis umbellata L. in Peninsular Ranges, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in southern Outer North Coast Ranges, Central Coast. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; California taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Brassicaceae

STANLEYA PRINCE'S PLUME
[Annual] perennial herb, subshrub; hairs 0 or simple, glaucous. Leaf: basal, proximal-most cauline petioled, simple to entire or 1(2)-pinnately lobed; middle, distal cauline petioled to sessile, base occasionally lobed or sagittate. Inflorescence: dense, elongated. Flower: sepals oblong to linear, spreading to reflexed, base not sac-like; petals yellow to white, long-clawed; filaments equal; anthers linear, coiled. Fruit: silique, dehiscent, linear, flat parallel to septum or cylindric, unsegmented; stalk above receptacle [0.4]0.6–2.8 cm; style 0 or short, stigma entire. Seed: 10–70, in 1 row, oblong, wingless.
7 species: western United States. (E.S. Stanley, English ornithologist, 1775–1851) Concentrates selenium to TOXIC levels, rarely eaten.

Key to Stanleya

S. viridiflora Nutt. GREEN-FLOWERED PRINCE'S PLUME
NATIVE
Perennial herb, glabrous throughout, glaucous. Stem: (2.5)4–12(14) dm, simple or branched distally. Leaf: basal (2.2)5–18(22) cm, lanceolate to oblanceolate or ovate, entire to occasionally dentate (pinnately lobed); middle, distal cauline entire, sessile, base lobed to sagittate. Flower: sepals 12–18 mm; petals 13–20 mm, 1–3 mm wide, lemon-yellow to white; claw 7–11 mm, glabrous; filaments glabrous. Fruit: 3–6(7) cm, 1.2–2 mm wide; stalk above receptacle (6)11–22(25) mm; style to 0.3 mm; pedicel spreading, 4–9(12) mm. Seed: 28–50, 2–3 mm, oblong.
2n=28. Cliffs, shale, clay knolls, steep bluffs, white ash deposits; 1300–2700 m. s Modoc Plateau; to Idaho, Montana, Colorado, Utah. May–Jul [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 2 2014
Citation for this treatment: [Author of taxon treatment] 2013. Stanleya, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45421, accessed on Sep 2 2014

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Geographic subdivisions indicated for the distribution of Stanleya viridiflora 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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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.