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.
Tree, shrub, armed or unarmed
Leaves even-2-pinnate or, if simple, true blades 0, petioles and midribs blade-like (comprising phyllodia), generally alternate, generally evergreen; axes with prominent raised glands or not
Inflorescence: heads, spheric, generally axillary, these solitary or in racemes or panicles, or flowers in spikes
Flower radial; sepals, petals inconspicuous; stamens many, conspicuous, exserted, free
Fruit generally dehiscent, sometimes tardily so, flat or ± cylindric
Species in genus: ± 1200 species: tropical, subtropical, especially Australia
Etymology: (Greek: sharp point)
Reference: [Whibley 1980 Acacias of South Australia; Clarke et al. 1989 Systematic Botany 14:549–564]
Australian species cultivated, sometimes naturalized and spreading in CA (seed arilled, stalk often elongated, encircing seed or not).
| Introduced |
Shrub, small tree 3–7 m, unarmed
Stem: twig angled, glabrous or minutely hairy when young
Leaf simple, 5–15 cm, linear-lanceolate or obovate; 2–3 longitudinal veins more prominent than others
Inflorescence: spike, 2–4 cm, axillary, < leaf
Flower bright yellow
Fruit 5–10 cm, ± straight, ± cylindric, narrowed between seeds, ending in a curved beak, brown
Seed: stalk short, aril thick, cup-shaped
Ecology: Uncommon. Disturbed places, especially sandy coastal areas
Elevation: < 150 m.
Bioregional distribution: San Francisco Bay Area, Outer South Coast Ranges, South Coast
Distribution outside California: native to e Australia
| 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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