Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

BRASSICACEAE

MUSTARD FAMILY

Reed C. Rollins, except as specified

Annual to subshrub
Leaves generally basal and cauline, alternate, generally simple; stipules 0
Inflorescence: generally raceme
Flower bisexual; sepals 4, free; petals (0)4, free, generally white or yellow, often clawed; stamens generally (2,4)6, generally 4 long, 2 short; ovary 1, superior, chambers generally 2, septum membranous, connecting 2 parietal placentas, style 1, stigma simple or 2-lobed
Fruit: generally capsule ("silique") with 2 deciduous valves, sometimes breaking transversely or indehiscent
Seeds 1–many per chamber
Genera in family: 300+ genera, 3000+ species: worldwide, especially cool regions; some cultivated for food (especially Brassica, Raphanus ) and ornamental
Recent taxonomic note: Recently treated to include Capparaceae [Rodman et al. 1993 Ann Missouri Bot Gard 80:686–699; Rollins 1993 Cruciferae of Continental North America. Stanford Univ Press]
Family description, key to genera by Robert A. Price.

THELYPODIUM

Winter annual to biennial, perennial herb; hairs 0 or simple
Stem generally erect, branched or not
Leaves: basal generally rosetted, petioled, generally shed early, entire to pinnately lobed; cauline petioled or sessile, often clasping
Flower: sepals erect to reflexed, greenish, white, lavender, or purplish, bases sac-like or not; petals linear to oblanceolate, white, lavender, or purple; stamens equal or 4 long, 2 short, paired filaments rarely ± fused
Fruit erect or spreading, narrowly linear, ± narrowed between seeds, cylindric or ± flat parallel to septum, generally stalked above receptacle; pedicel ± flat at base or not, generally expanded at tip; stigma in width < style tip, generally entire
Seeds 1 row per chamber, ± flat; wing generally 0; embryonic root at edge or toward back of 1 cotyledon
Species in genus: 20 species: w North America
Etymology: (Greek: female foot, from fruit stalk above receptacle)
Reference: [Al-Shehbaz 1973 Contr Gray Herb 204:1–148]

Native

T. brachycarpum Torr.

SHORT-PODDED THELYPODIUM

Perennial, rhizomed
Stem 3–8(12) dm, branched or not; hairs ± 0 or near base, sparse
Leaves: basal 4–14(20) cm, ± entire to pinnately lobed, thickish, glaucous, hairy or not; cauline sessile, 2–6 cm, sagittate, clasping stem, entire, glaucous
Inflorescence spike-like, dense
Flower: petals white, crinkled
Fruit 1–3 cm, cylindric, narrowed between seeds; stalk above receptacle 1–2(5) mm, slender; pedicel spreading, rarely ± ascending, 1–2 mm, stout, base flat; style 0.5–1 mm, slender
Seed plump; embryonic root at back or toward edge of 1 cotyledon
Ecology: UNCOMMON. Alkaline soils, adobe flats, pond margins
Elevation: 800–2320 m.
Bioregional distribution: Klamath Ranges, North Coast Ranges, Cascade Range, Great Basin Floristic Province
Distribution outside California: s Oregon
Horticultural information: TRY.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for THELYPODIUM%20brachycarpum being generated
 
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)

Retrieve Jepson Interchange Index to Plant Names entry for Thelypodium brachycarpum
Retrieve dichotomous key for Thelypodium
Overlay Consortium of California Herbaria specimen data by county on this map
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