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

FABACEAE

LEGUME FAMILY

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.

CARAGANA

Duane Isely

Shrub, tree, spiny or not
Leaves clustered on spurs (alternate on new growth), even-1-pinnate; stipules membranous, bristle- or spine-like
Inflorescence: clusters of 1–4 flowers on spurs
Flower: calyx lobes << tube; corolla yellow; 9 filaments fused, 1 free
Fruit dehiscent, oblong, flat
Seeds few
Species in genus: 50+ species: mostly c Asia
Etymology: (Mongolian name)

Introduced

C. arborescens Lam.

SIBERIAN PEA TREE

Plant glabrous or puberulent
Leaf: leaflets 8–12, 1–2.5 cm, elliptic to oblong
Flower: corolla 1.6–2.2 cm
Fruit 4–5.5 cm, oblong, glabrous
Chromosomes: 2n=16
Ecology:
Elevation: 1200–1500 m.
Bioregional distribution: Peninsular Ranges
Distribution outside California: native to temperate Asia
Cult in Eur, eastern&c US.

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