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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to tree. Leaf: generally alternate, generally compound, generally stipuled, generally entire, pinnately veined Inflorescence: generally raceme, spike, umbel or head; or flowers 1–few in axils. Flower: generally bisexual, generally bilateral; hypanthium 0 or flat to tubular; sepals generally 5, generally fused; petals generally 5, free, fused, or lower 2 ± united into keel (see 3, Key to Groups, for banner, wings); stamens 10 or many (or , 5, 6, 7, 9), free or fused or 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, including a stalk-like base (above receptacle) or not. Seed: 1–many, often ± reniform, generally hard, smooth.
± 730 genera, 19400 species: worldwide; with grasses, requisite in agriculture, most natural ecosystems. Many cultivated, most importantly Arachis, peanut; Glycine, soybean; Phaseolus, beans; Medicago, alfalfa; Trifolium, clovers; many orns. [Lewis et al. (eds) 2005 Legumes of the World. RBG, Kew] Unless stated otherwise, fruit length including stalk-like base, number of 2° leaflets is per 1° leaflet. Upper suture of fruit adaxial, lower abaxial. Anthyllis vulneraria L. evidently a waif, a contaminant of legume seed from Europe. Laburnum anagyroides Medik., collected on Mount St. Helena in 1987, may be naturalized. Ceratonia siliqua L., carob tree (Group 2), differs from Gleditsia triacanthos L. in having evergreen (vs deciduous) leaves that are 1-pinnate (vs 1-pinnate on spurs on old stems, 2-pinnate on new stems) with 2–5(8) (vs 7–17) 1° leaflets, commonly cultivated, now naturalized in southern California. Aeschynomene rudis Benth. <Noxious weed>, Halimodendron halodendron (Pall.) Voss <Noxious weed> (possibly extirpated), Lens culinaris Medik. are agricultural weeds. Caragana arborescens Lam. only cultivated. Ononis alopecuroides L. <Noxious weed>, Sphaerophysa salsula (Pall.) DC. <Noxious weed> all evidently extirpated. Cercidium moved to Parkinsonia; Chamaecytisus to Cytisus; Psoralidium lanceolatum to Ladeania. —Scientific Editors: Martin F. Wojciechowski, Thomas J. Rosatti.
Key to Fabaceae
Shrub, tree. stipule spines generally 2 per node; roots long, spreading. Leaf: even-2-pinnate, alternate, deciduous; 1° leaflets generally 2–4, opposite; 2° leaflets generally many, opposite. Inflorescence: axillary, head or spike-like raceme, many-flowered. Flower: radial, small, green-white or yellow; calyx shallowly bell-shaped, lobes short; petals generally inconspicuous; stamens 10, exserted, free; style exserted, generally appearing before stamens. Fruit: indehiscent, ± flat, ± narrowed between seeds or tightly coiled, pulpy when young, then woody. Seed: several.Key to Prosopis
± 44 species: especially America (also southwestern Asia, northern Africa). (Greek: burdock, for obscure reasons) Cult, naturalized worldwide.
Unabridged references: [Burkhart 1976 J Arnold Arbor 57:220–524; Holland 1987 Madroño 34: 324–333]
Shrub, tree < 15 m; crown ± spreading, rounded. Stem: often crooked; spines 10–20 mm. Leaf: 1° leaflets 2–4, 2–9 cm; 2° leaflets generally 30–60, 4–15 mm, oblong, length 3–4 × width. Inflorescence: spike-like raceme, 5–15 cm. Flower: petals 2–3 mm. Fruit: 8–15 cm, linear, ± flat, ± narrowed between seeds. Seed: 5–7 mm, ovate.
2n=28. Uncommon. Sandy or rocky soils in canyons, washes; < 1000 m. San Joaquin Valley, Central Coast, South Coast, Peninsular Ranges; native to southwestern United States (except California), northern Mexico. Apr–Jun [Online Interchange]
Previous taxon: Prosopis strombulifera
Next taxon: Psorothamnus
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 7 2015
Citation for this treatment: [Author of taxon treatment] 2013. Prosopis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=39958, accessed on Oct 7 2015
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|Geographic subdivisions indicated for the distribution of Prosopis velutina|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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