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 and Elizabeth McClintock

Shrub, unarmed
Leaves odd-1-pinnate, alternate
Inflorescence: raceme, axillary, few-flowered
Flower bilateral; sepals 5; petals 5, generally yellow; 9 filaments fused, 1 free
Fruit indehiscent, inflated, bladder-like; walls papery, making a popping sound when squeezed
Seeds many
Species in genus: ± 28 species: Medit to w China, w Africa
Etymology: (Greek: ancient name)
Lvs with cathartic properties.


C. arborescens L.

Plant generally < 3 m, rounded; branches many
Leaf deciduous; leaflets 9–13, 1.5–3 cm, elliptic, sparsely hairy
Flower ± 3 cm
Fruit 2–3 cm, glabrous
Ecology: Uncommon. Disturbed areas
Elevation: especially < 500 m.
Bioregional distribution: n Sierra Nevada Foothills, San Francisco Bay Area
Distribution outside California: native to Europe
Cult as ornamental.

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bioregional map for COLUTEA%20arborescens being generated

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