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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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.


Annual, perennial herb; hairs simple or generally branched
Stem prostrate to erect, generally branched
Leaf simple to 2-pinnate
Inflorescence bracted or not
Flower: sepals erect, inner pair generally sac-like at base; petals prominently clawed, reddish or purple, rarely white
Fruit linear, sessile above receptacle, dehiscent; style tapered or 0; stigma lobes decurrent, generally fused
Seeds many, 1 row per chamber; margins 0
Species in genus: ± 35 species: s Eurasia, n Africa
Etymology: (W. Malcolm, London nurseryman, 1769–1820)


M. africana R. Br.

Annual, often ± prostrate, stiff; branches many
Stem 1.5–5 dm; hairs dense, small
Leaves simple; lower 3–6 cm, oblanceolate, sparsely dentate, petioled; upper reduced, graduated to bracts
Flower: petals 6–9 mm, rose-violet to pink
Fruit ascending, 4–6 cm, 1–1.5 mm wide, cylindric to ± 4-sided, ± narrowed between seeds; pedicel 1–2 mm; style 0, stigma lobes pointed
Chromosomes: 2n=28
Ecology: Disturbed areas, desert scrub
Elevation: 1250–2000 m.
Bioregional distribution: East of Sierra Nevada
Distribution outside California: to Rocky Mtns; native to Mediterranean

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bioregional map for MALCOLMIA%20africana being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Malcolmia africana
Retrieve dichotomous key for Malcolmia
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