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FABACEAE (Leguminosae) LEGUME FAMILY

Martin F. Wojciechowski, except as noted

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 [1], 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

HOSACKIA LOTUS

Luc Brouillet

Perennial herb, unarmed. Leaf: odd-1-pinnate; stipules scarious or leaflet-like, fragile or not, early-deciduous; leaflets 3–15, often ± opposite. Inflorescence: several-flowered umbel or 1–2-flowered, axillary, generally peduncled, often bracted. Flower: corolla yellow, white, or pink, fading darker; 9 filaments fused, 1 free. Fruit: dehiscent, exserted from calyx, linear to oblong, ± beaked. Seed: few–several.
± 11 species: southwestern Canada, western United States, Mexico to Guatemala, especially California. (D. Hosack, New York physician, botanist, mineralogist, 1769–1835) [Brouillet 2008 J Bot Res Inst Texas 2:387–394] Pollen apertures 3. Intermediates may be hybrids.
Unabridged references: [Isely 1981 Mem New York Bot Gard 25:128–206]

Key to Hosackia

H. crassifolia Benth.
NATIVE
Often robust. Stem: sprawling or erect, 7–15 dm, base hollow. Leaf: stipules scarious, inconspicuous; leaflets 9–15, 2–3 cm, elliptic or obovate, length generally 1–2.5 × width, abaxially pale. Inflorescence: generally 12–20-flowered; peduncle bract 0 or generally well below umbel, (1)3–5-parted; pedicels generally 3–6 mm, > 3 mm at least in fruit. Flower: calyx 5–8 mm, lobes < tube; corolla 12–17 mm, yellow-green, dark-blotched in age, claw exserted from calyx tube. Fruit: 3.5–7 cm, 3–5 mm wide, oblong, glabrous. Seed: several.
2n=14. [Online Interchange]

H. crassifolia var. otayensis (Isely) Brouillet OTAY MOUNTAIN HOSACKIA
NATIVE
Hairs long, soft, wavy. Flower: ovules 14–20.
Disturbed areas; 900–1000 m. s Peninsular Ranges (Otay Mtn, San Diego Co.); Baja California. [Lotus crassifolius var. otayensis Isely] May–Aug [Online Interchange] {CNPS list}
Unabridged note: Expanded author citation: Hosackia crassifolia var. otayensis (Moran ex Isely) Brouillet

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 20 2014
Citation for this treatment: [Author of taxon treatment] 2013. Hosackia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=91758, accessed on Dec 20 2014

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Geographic subdivisions indicated for the distribution of Hosackia crassifolia var. otayensis 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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map of distribution 1
(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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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.