Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
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  • 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

Species in genus: 1 sp.: Medit, Canary, Madeira, Azores islands
Etymology: (Greek: ancient name)


S. junceum L.


Shrub, unarmed
Stem erect; branches few, < 3 m, rush-like, not angled, green, generally ± leafless
Leaves simple, alternate to subopposite, ephemeral, < 2.5 cm, linear to lanceolate; upper surface glabrous; lower surface appressed-hairy
Inflorescence: raceme, terminal, open; flowers several
Flower ± 2.5 cm, ± fragrant; calyx split above ± to base (rarely ± 2-lipped, 5-lobed); petals yellow; stamens 10, filaments fused
Fruit dehiscent, 5–10 cm, ± 5 mm wide
Ecology: Common. Disturbed areas
Elevation: < 600 m.
Bioregional distribution: Outer North Coast Ranges, Sacramento Valley, San Francisco Bay Area, Outer South Coast Ranges, South Coast, s Channel Islands, Western Transverse Ranges. Sts used for fiber, flowers for yellow dye.

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