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 or tree, generally spreading from underground parts, generally with stipular spines not gland-dotted
Leaves odd-1-pinnate, alternate, deciduous
Inflorescence: raceme, axillary
Flower: calyx bell-shaped, lobes 5; petals 5, white or pink, banner reflexed; 9 filaments fused, 1 free
Fruit flat or plump, dehiscent
Species in genus: 4 species: US
Etymology: (J. & V. Robin, who introduced plants to Eur, 16–17th century)
Reference: [Isely & Peabody 1984 Castanea 49:187–202]


R. neomexicana A. Gray


Shrub or small tree
Inflorescence pendent or not
Flower: corolla 2–2.5 cm
Fruit thick, not winged
Ecology: Uncommon. Canyons in pinyon/juniper woodland
Elevation: < 1500 m.
Bioregional distribution: e Mojave Desert (Mid Hills, ne San Bernardino Co.)
Distribution outside California: to w Texas, n Mexico
Flowering time: Apr–Aug
Horticultural information: 15, 16, 17, IRR: 1, 2, 3, 7, 8, 9, 10, 11, 14, 18, 19, 20, 21, 22, 23, 24.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ROBINIA%20neomexicana being generated

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