Jepson Interchange (more information)
Print edition is available from the University of California Press
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TREATMENT FROM THE JEPSON MANUAL |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press |
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.[Polhill & Raven (eds) 1981 Advances in legume systematics; Allen & Allen 1981 Leguminosae] Family description and key to genera by Duane Isely.
Species in genus: 1 sp
Etymology: (S.T. Olney, Am botanist, 1812–1878)
| Native |
Shrub or tree with stipular spines, canescent
Leaves even-1-pinnate, alternate or clustered; stipular spines sometimes 0 or breaking off, leaving scar, sometimes persisting above leaves and appearing internodal; leaflets 8–19, opposite or subopposite, obovate or elliptic, thick; axis extending beyond leaflets, pointed
Inflorescence: raceme, axillary, 2–4-flowered
Flower: corolla 10–12 mm, wings purple, other petals yellow-white to pink; 9 filaments fused, 1 free
Fruit slowly dehiscent, oblong or elliptic, plump, irregularly narrowed between seeds, persistent
Seeds 1–3
Chromosomes: 2n=18
Ecology: Often abundant in washes
Elevation: < 600 m.
Bioregional distribution: Peninsular Ranges, Sonoran Desert
Distribution outside California: Arizona, Mexico
Flowering time: Apr–May
Fls erraticallyHorticultural information: DRN, DRY: 8, 9, 14, 19, 21, 23, IRR: 10, 11, 12, 13; DFCLT.
| YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps). |
| Citation: http://ucjeps.berkeley.edu/interchange/I_treat_indexes.html Fri Nov 27 09:34:07 2009 |