Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



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

previous taxon | next taxon
bioregional map for MALCOLMIA%20africana being generated

Retrieve Jepson Interchange Index to Plant Names entry for Malcolmia africana
Retrieve dichotomous key for Malcolmia
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California