TREATMENT FROM THE JEPSON MANUAL	previous taxon | next taxon Jepson Interchange (more information)
	©Copyright 1993 by the Regents of the University of California Print edition is available from the University of California Press

	The second edition of The Jepson Manual (2012) is available from the University of California Press
	See also the Jepson eFlora, which parallels the Second Edition

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.

CAULANTHUS

JEWELFLOWER

Roy E. Buck

Annual to perennial herb, generally tapered-hairy on leaves and lower stem
Stem generally ascending to erect, ± glaucous
Leaves ± entire to deeply cut; basal generally rosetted, withering, generally oblanceolate to obovate; cauline generally linear to obovate, clasping, reduced
Inflorescence becoming more open; bracts generally 0
Flower biradial to ± bilateral; calyx ± urn-shaped, sepals often ± pouched below, generally not green, generally not darker in bud, generally erect after flower; petal (and sepal) margins often scarious, wavy or not; filaments generally in 3 pairs, generally free (or longest 1–2 pairs ± fused below); style < 4 mm, stigma generally 2-lobed
Fruit ascending to reflexed, generally cylindric
Seed generally ± oblong, generally compressed, generally ± brown
Species in genus: ± 14 species: ± sw North America
Etymology: (Greek: stem flower, from use of some as cauliflower-like vegetable)

Native

C. coulteri S. Watson

Annual, ± glabrous or ± bristly below
Stem generally branched above
Leaves < 13 cm; hairs branched or not; basal ± entire to deeply cut, tapered to short, winged petiole; cauline oblong to ovate, entire to cut, sessile, clasping
Flower: sepals erect or spreading, (5)7–18 mm, ± pouched below, keeled, glabrous or ± bristly, generally ± darker in bud; petals 8–31 mm, whitish, cream and purple-veined, purplish, or brownish, margins wavy, generally scarious; longest 1–2 pairs of filaments ± fused; style < 1 mm
Fruit erect to reflexed, 4–13 cm
Ecology: Dry, exposed slopes
Elevation: 80–2000 m.
Bioregional distribution: s Sierra Nevada Foothills, Tehachapi Mountain Area, sw San Joaquin Valley, se San Francisco Bay Area, e Outer South Coast Ranges, Inner South Coast Ranges, nw Western Transverse Ranges, sw edge Mojave Desert (Kern Co.).Varieties intergrade in se SCoRO, n WTR.

Native

var. coulteri

Generally densely hairy; generally some leaf and sepal hairs branched
Leaves: basal sometimes deeply cut; lower cauline generally coarsely dentate to deeply cut
Flower: generally only longest filament pair ± fused; stigma lobes 0.5–2 mm
Fruit generally reflexed
Ecology: Habitats of sp.
Bioregional distribution: s Sierra Nevada Foothills, Tehachapi Mountain Area, se Outer South Coast Ranges, nw Western Transverse Ranges, sw edge Mojave Desert (Kern Co.)
Flowering time: Mar–May
Variable; some distinct local races
Horticultural information: SUN, DRN: 7, 8, 9, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

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