Jepson Interchange (more information)
Print edition is available from the University of California Press
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This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants. |
| Jepson Flora Project: Jepson Interchange |
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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 |
| The second edition of The Jepson Manual (2012) is available from the University of California Press | |
| See also the Jepson eFlora, which parallels the Second Edition |
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.
Annual or perennial herb, unarmed, glabrous or hairy, rarely glandular, generally rhizomed
Stem sprawling, climbing, or erect; stem angled, flanged, or winged
Leaves even-1-pinnate; stipules persistent, upper lobe > lower; main axis ending as a tendril or short bristle; leaflets 0–16, ± opposite or alternate, linear to widely ovate
Inflorescence: raceme, generally axillary, 1–many-flowered
Flower: upper calyx lobes generally < and wider than lower; corolla 8–30 mm, pink-purple or pale, sometimes white or yellow; 9 filaments fused, 1 free; style flat, finely hairy on concave side
Fruit dehiscent, oblong, ± flat
Species in genus: ± 150 species: temp North America, Eurasia
Etymology: (Ancient Greek name)
Reference: [Broich 1987 Syst Bot 12:139–153]
Some species variable, intergrading with others; some hybridization probable.Seeds of most alien species. TOXIC to humans (especially young males) and livestock (especially horses) .
| Introduced |
Annual, glabrous
Stem angled or flanged, not winged
Leaf: stipules 1.5–5 cm, leaflet-like; leaflets 0; tendril coiled
Inflorescence 1–2-flowered
Flower: calyx lobes > tube; corolla 10–13 mm, yellow
Fruit glabrous
Chromosomes: 2n=14
Ecology: Uncommon. Disturbed places
Elevation: especially < 500 m.
Bioregional distribution: Northwestern California
Distribution outside California: to Washington, e US; native to Europe
| 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). |
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