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.

ERYSIMUM

WALLFLOWER

Robert A. Price

Annual to subshrub; hairs appressed, forked to many-branched
Leaves in basal rosettes and cauline, simple, entire to lobed
Flower: petals clawed, generally cream to orange; stigma 2-lobed
Fruit narrow, round, 4-sided, or ± flattened (generally parallel to septum); style 0.2–5 mm
Seeds 1–2 rows per chamber, 1–4 mm, often ± winged
Species in genus: 160+ species: temp n hemisphere, especially Eurasia
Etymology: (Greek: to help, from medicinal uses)
Reference: [Rossbach 1958 Madroño 14:261–267]
Incl Cheiranthus ; native CA taxa all related to E. capitatum.

Native

E. teretifolium Eastw.

SANTA CRUZ WALLFLOWER

Biennial or short-lived perennial herb, generally dull purplish
Stems 1–several, generally unbranched, 15–100 cm
Leaf very narrowly linear (< 3 mm wide), finely toothed; most hairs 2-branched; basal 3–17 cm
Flower: petals 15–25 mm, yellow (-orange)
Fruit ascending to spreading, 4–15 cm, 1.2–2.5 mm wide, partly flattened, often irregularly curved; style 0.5–2.5 mm
Seed 1.5–2.7 mm, 0.9–1.5 mm wide; wing generally at tip
Ecology: Inland sand
Elevation: 200–400 m.
Bioregional distribution: sw San Francisco Bay Area (Santa Cruz Co.).Endangered by development, sand mining
Horticultural information: In cultivation.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ERYSIMUM%20teretifolium being generated
 
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Retrieve Jepson Interchange Index to Plant Names entry for Erysimum teretifolium
Retrieve dichotomous key for Erysimum
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