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. glaucus S. Watson

Perennial from woody caudex, glabrous
Stem generally branched above
Leaves: basal ± not rosetted, blades 2–10 cm (± > petioles), widely oblong to widely obovate, entire or base few-lobed, abruptly narrowed to petiole; lower cauline sometimes ± reduced; upper linear to lanceolate, petioled
Flower: sepals 6–10 mm, not pouched below; petals 9–18 mm, yellowish green or purplish, margins scarious, not wavy; style < 1.3 mm
Fruit spreading, 4–15 cm, generally curved
Seed yellowish or light brown
Ecology: Uncommon. Open, rocky slopes, often in crevices
Elevation: 1400–2500 m.
Bioregional distribution: White and Inyo Mountains, n Desert Mountains (Grapevine, Last Chance mtns)
Distribution outside California: w Nevada
Flowering time: May–Jun
Only CA sp. with stigma lobes over placentas rather than valves.

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bioregional map for CAULANTHUS%20glaucus 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 Caulanthus glaucus
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