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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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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