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.

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. californicus (S. Watson) Payson

CALIFORNIA JEWELFLOWER

Annual, ± glabrous or sparsely bristly below
Stem decumbent to erect, often branched ± throughout
Leaves < 11 cm; basal coarsely wavy-dentate to shallowly cut, tapered to short, winged petiole; cauline ovate to ± round, entire to coarsely dentate, clasping
Inflorescence often 1-sided
Flower: sepals erect or spreading, 4–10 mm, pouched below, keeled, darker in bud; petals 6–11 mm, whitish, veins purple, margins wavy; filaments free or longest pair ± fused; style < 3 mm
Fruit ascending to reflexed, 1–6 cm, compressed perpendicular to septum
Seed ± spheric
Ecology: Flats, gentle slopes, generally in non-alkaline grassland, open juniper woodland
Elevation: 70–1000 m.
Bioregional distribution: s San Joaquin Valley.Formerly more widespread in s SnJV. Sometimes treated as Stanfordia c. S. Watson because seed spheric, fruit compressed perpendicular to septum.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for CAULANTHUS%20californicus being generated
 


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