Jepson Flora Project: Jepson Interchange    

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

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

FABACEAE

LEGUME FAMILY

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.

OXYTROPIS

Duane Isely

Perennial, unarmed, hairy
Leaves odd-1-pinnate, basal, sometimes also cauline; stipules generally partly fused to petiole, initially forming a sheath, or free
Inflorescence: raceme, generally scapose, spike- or head-like, or 1–2-flowered; bracts generally persistent
Flower: calyx lobes < tube; corolla pink-purple, white, or yellowish, keel tip beaked; 9 filaments fused, 1 free; style glabrous
Fruit ascending or reflexed, generally persistent, lanceolate or inflated, ± 2-chambered, septum arising from upper suture, ± incomplete
Species in genus: ± 300 species: Eurasia, North America
Etymology: (Greek: sharp keel)
Reference: [Barneby 1952 Proc Calif Acad Sci Series IV 27:177–309]
Seriously TOXIC: causes "staggers" in livestock, mostly outside CA.

Native

O. deflexa (Pall.) DC. var. sericea Torr. & A. Gray

BLUE PENDENT-POD OXYTROPE

Plant green or gray
Leaves basal, often also 1–3 cauline; stipules ± free; leaflets 15–31, 3–20 mm, lanceolate to ovate, flat or folded
Inflorescence spike-like; flowers few–many, quickly reflexed; peduncle generally > 15 cm, often curved
Flower: corolla 5–10 mm, dull white to pale lilac or blue, ± = or > calyx
Fruit reflexed, 3–4.5 cm, elliptic or oblong, membranous or papery, slightly 2-chambered; stalk-like base generally short
Chromosomes: 2n=16
Ecology: Moist meadows, forest openings
Elevation: ± 2800 m.
Bioregional distribution: White and Inyo Mountains (White Mtns, Mono Co.)
Distribution outside California: to Alaska, Nevada, New Mexico
Flowering time: Jun–Aug
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for OXYTROPIS%20deflexa%20var.%20sericea being generated
 


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