Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



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
Reference: [Polhill & Raven (eds) 1981 Advances in legume systematics; Allen & Allen 1981 Leguminosae]
Family description and key to genera by Duane Isely.


Elizabeth McClintock

Subshrub from spreading roots, unarmed
Leaves 2-pinnate, ± basal
Inflorescence: raceme, scapose
Flower slightly bilateral; sepals ± free, equal; petals ± equal, yellow to orange-red; stamens 10, exserted, free, filaments often glandular
Fruit tardily dehiscent
Seeds several
Species in genus: 28 species: Am, S. Africa
Etymology: (J. Centurius, Count of Hoffmannsegg, Germany, 1766–1849)
Reference: [Isley 1975 Mem New York Bot Gar 25(2):162–168]


H. glauca (Ortega) Eifert


Plant erect, < 30 cm; stalked glands throughout; roots deep, tubered
Stem: branches from base, slender
Leaf 5–12 cm; 1° leaflets 5–11, odd-pinnate, 5–20 mm; 2° leaflets 10–20, even-pinnate, 4–6 mm
Inflorescence 5–15 cm, often glandular
Flower: petals spreading, ± 1 cm, orange-red
Fruit 1.5–4 cm, ± curved; glands scattered, short-stalked, deciduous or not
Ecology: Uncommon. Dry, alkaline flats in deserts, disturbed areas
Elevation: < 900 m.
Bioregional distribution: San Joaquin Valley, Outer South Coast Ranges, South Coast, Western Transverse Ranges, Desert
Distribution outside California: to Texas, Mexico, S.America
Flowering time: Apr–Jun
Synonyms: H. densiflora A. Gray
Aggressive weed, spreading by edible tubers.

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