Jepson Flora Project: Jepson Interchange    

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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. californica Nutt.

Leaf: main axis with prickle-like glands; leaflet midrib generally ending as a sessile gland
Inflorescences generally scattered
Chromosomes: 2n=20
Ecology: Wooded, shrubby, or open slopes or chaparral
Elevation: < 2300 m.
Bioregional distribution: s North Coast Ranges, Cascade Range Foothills, n Sierra Nevada Foothills, n San Francisco Bay Area, South Coast Ranges, Transverse Ranges, n&eastern Peninsular Ranges
Distribution outside California: Arizona, n Baja California

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bioregional map for AMORPHA%20californica being generated

Retrieve Jepson Interchange Index to Plant Names entry for Amorpha californica
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