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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

THELYPODIUM
Annual to perennial herb; hairs 0 or simple. Leaf: basal rosetted, petioled, entire to pinnately lobed; mid-cauline petioled or sessile, base lobed to sagittate or wedge-shaped. Flower: sepals erect to reflexed, bases sac-like or not; petals linear to oblanceolate, spoon-shaped, or obovate, clawed or not, white to lavender or purple; stamens free (± fused). Fruit: silique, dehiscent, linear, unsegmented, ± narrowed between seeds, cylindric or ± flat parallel to septum, stalked above receptacle; stigma entire. Seed: 1 row per chamber, ± flat; wing generally 0.
16 species: western North America. (Greek: female foot, from fruit stalk above receptacle) [Al-Shehbaz 1973 Contr Gray Herb 204:1–148]

Key to Thelypodium

T. brachycarpum Torr. SHORT-PODDED THELYPODIUM
NATIVE
Biennial, generally glaucous. Stem: branched or not, (1.3)3–8(12) dm; hairs 0 or near base. Leaf: basal blade 3–14(20) cm, ± entire to pinnately lobed, withered by fruit time, petiole ciliate; mid-cauline sessile, sagittate, entire. Inflorescence: dense. Flower: petals 8–12(16) mm, 0.3–0.5(1) mm wide, linear to narrowly oblanceolate, white, crinkled. Fruit: (0.8)1.2–2.7(3) cm, 1–1.5(2) mm wide, cylindric, narrowed between seeds; stalk above receptacle 1–2(5) mm, slender; style 0.5–1 mm; pedicel spreading (± ascending), 1–2 mm, stout. Seed: 12–26, (1.3)1.5–2 mm, plump.
Alkaline soils, adobe flats, pond margins; 800–2320 m. Klamath Ranges, North Coast Ranges, Cascade Range, Great Basin Floristic Province; southern Oregon. Apr–Aug [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 Jul 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Thelypodium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=46354, accessed on Jul 23 2014

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click for enlargement Thelypodium brachycarpum
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2002 California Native Plant Society

Bioregions in which Thelypodium brachycarpum 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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CCH collections by month

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