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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
Annual, perennial herb, unarmed. Leaf: generally palmately compound; stipules conspicuous, partly fused to petiole, generally papery or membranous; leaflets generally 3, occasionally 5–9, ± toothed or wavy. Inflorescence: raceme (generally umbel-like), head, or spike, axillary or terminal, generally many-flowered, generally involucred, generally peduncled; inflorescence bracts 0 or forming vestigial ring or involucre; flower bracts present or not. Flower: generally spreading to erect, generally becoming reflexed; corolla generally purple to pale lavender, occasionally yellow, persistent after flower; 9 filaments fused, 1 free. Fruit: generally indehiscent but generally breaking, short, plump, generally enclosed in corolla; base generally stalk-like. Seed: 1–6.Key to Trifolium
± 300 species: temps, tropical mountains, northern hemisphere, South America, Africa; foodplant for lepidopterans, cultivated as green manure in crop rotation, fodder. (Latin: 3 leaves) [Ellison et al. 2006 Molec Phylogen Evol 39:688–705; Vincent 2009 Madroño 56:208]
Unabridged references: [Gillett 1980 Canad J Bot 58:1425–1448; Zohary & Heller 1984 Genus Trifolium]
Annual, possibly short-lived perennial herb, generally ± glabrous. Stem: prostrate to erect, wiry to fleshy. Leaf: cauline; lower stipules generally entire, upper deeply cut; leaflets generally obovate or wedge-shaped, occasionally narrower. Inflorescence: head-like, included or exserted from leaves, 0.5–2.5 cm wide, 1–many-flowered; involucre wheel-shaped, generally well developed. Flower: calyx 3–10 mm, bell-shaped, tube 10–many-veined, lobes all or some generally > tube, entire or toothed, bristle-tipped; corolla 3.5–16 mm, lavender to purple, tips generally white. Fruit: stalk-like base short or 0. Seed: 1–2.
2n=16. Most variable of California clovers; ± 30 entities named but intergrading without clear delimitations; most conspicuous California entities treated as varieties below; keel shape seems taxonomically insignificant; molecular research needed. [Online Interchange]
Annual, small to robust. Stem: prostrate to erect, occasionally mat- or tangle-forming, 0.3–5 dm. Inflorescence: 1–1.5 cm wide, 5–10-flowered. Flower: calyx 4–8 mm; corolla 6–10 mm.
Open generally moist fields, wet forest meadows, roadsides; 0–2500 m. California Floristic Province, East of Sierra Nevada; sporadic to British Columbia, Montana, Colorado, Arizona, Baja California. [Trifolium appendiculatum Lojac. var. rostratum (Greene) Jeps.; Trifolium variegatum phases 1,3 in TJM (1993)] Generally considered typical; intergrading with Trifolium variegatum var. major. Apr–Jun [Online Interchange]
Previous taxon: Trifolium variegatum var. major
Next taxon: Trifolium vesiculosum
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Trifolium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=74014, accessed on Mar 28 2015
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|Trifolium variegatum var. variegatum|
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© 2004 Carol W. Witham
|Geographic subdivisions indicated for the distribution of Trifolium variegatum var. variegatum|| 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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