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.



Annual to tree
Leaves generally compound, alternate, stipuled; leaflets generally entire
Inflorescence: generally raceme, spike, umbel or head; flowers sometime 1–2 in axils
Flowers generally bisexual, generally bilateral; hypanthium generally flat or cup-like; sepals generally 5, fused; petals generally 5, free, or the 2 lower ± fused; stamens 1–many, often 10 with 9 filaments at least partly fused, 1 (uppermost) free; pistil 1, ovary superior, generally 1-chambered, ovules 1–many, style, stigma 1
Fruit: legume, sometimes including a stalk-like base above receptacle, dehiscent, or indehiscent and breaking into 1-seeded segments, or indehiscent, 1-seeded, and achene-like
Seeds 1–several, often ± reniform, generally hard, smooth
Genera in family: ± 650 genera, 18,000 species: worldwide; with grasses, requisite in agriculture and most natural ecosystems. Many cultivated, most importantly Arachis , peanut; Glycine , soybean; Phaseolus , beans; Medicago ; Trifolium ; and many orns
Reference: [Polhill & Raven (eds) 1981 Advances in legume systematics; Allen & Allen 1981 Leguminosae]
Family description and key to genera by Duane Isely.



Duane Isely

Shrub, unarmed, gland-dotted
Leaves odd-1-pinnate; stipules bristle-like, ephemeral; leaflets with tiny stipule-like appendages
Inflorescence: raceme, terminal, spike-like
Flower: petal 1 (banner); stamens 10, exserted, filaments fused near bases; style puberulent
Fruit indehiscent
Seed 1
Species in genus: ± 15 species: North America
Etymology: (Greek: deformed, from single petal)
Reference: [Wilbur 1975 Rhodora 77:337–409]


A. fruticosa L.

Leaf: main axis without prickle-like glands; leaflet midrib often ending as a short bristle, gland-tipped or not
Inflorescences generally clustered
Chromosomes: 2n=20,40
Ecology: Along streams, canyons
Elevation: < 1200 m.
Bioregional distribution: c&s South Coast, San Bernardino Mountains, Peninsular Ranges
Distribution outside California: to s Canada (Manitoba), eastern US, n Mexico
Synonyms: var. occidentalis (Abrams) Kearney & Peebles
Highly variable, especially outside CA
Horticultural information: DRN: 6, 15, 16, 17 &IRR: 1, 2, 3, 7, 14, 18, 19, 20, 21, 22, 23, 24; STBL.

previous taxon | next taxon
bioregional map for AMORPHA%20fruticosa being generated

Retrieve Jepson Interchange Index to Plant Names entry for Amorpha fruticosa
Retrieve dichotomous key for Amorpha
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