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.

MATTHIOLA

STOCK

Annual, perennial herb, generally grayish; hairs dense, multibranched, rarely also simple or glandular
Stems 1–few, branched
Leaves simple, entire to dentate
Flower: sepals erect, inner pair sac-like at base; petals long-clawed; filaments often expanded at base, appendages 0; stigma with a deep, decurrent lobe above each valve
Fruit linear, cylindric or ± flat
Seeds 1 row per chamber, winged
Species in genus: ± 50 species: Eur, Africa, Asia
Etymology: (P.A. Matthioli, Italian physician, botanist, 1500–1577)

Introduced

M. incana (L.) R. Br.

Perennial; base often woody
Stem erect, < 8 dm
Leaf linear-oblong to oblanceolate, thickish, ± entire; tip rounded
Flower fragrant; sepals 9–15 mm; petals 2–2.6 cm, reddish to violet, rarely white
Fruit < 15 cm, ± flat, ± narrowed between seeds; style < 4 mm, stigma with short horns or bumps or not
Chromosomes: 2n=14
Ecology: Sandy areas, beaches, ocean bluffs
Elevation: < 100 m.
Bioregional distribution: s North Coast, Central Coast, South Coast
Distribution outside California: Mexico; native to Europe

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