Sophora tomentosa
Sophora leachiana
yellow necklacepod, yellow sophora
western necklace-pod, western sophora, western sophora or necklacepod
rachis 10–25 cm;
leaflets 11–21, blades obovate, oblong, elliptic, or suborbiculate, 2–4(–5) cm, surfaces villous to sericeous abaxially, densely villous, sericeous, or glabrescent adaxially.
rachis 8–17 cm;
leaflets 16–21, blades obovate to oblong, 1.5–2.6 cm, surfaces villous-tomentose abaxially, appressed-pubescent adaxially.
35–75-flowered, crowded, 12–32 cm;
bracteoles 0.
14–64-flowered, lax, 7–15 cm;
bracteoles 1 or 2.
4–10 mm.
2–6 mm.
spreading, (17–)20–25 mm;
calyx broadly campanulate, 5–8[–10] mm;
corolla creamy white to yellow;
ovary pubescent.
divergent or soon declined, 13–16 mm;
calyx tubular-campanulate, asymmetrically pouched, 6–8 mm;
corolla creamy white;
ovary pubescent.
black, narrowly oblong-moniliform, 5–15(–20) × 0.5–1 cm, leathery.
light brown, cylindric, fusiform, or torulose, 3–4 × 0.4 cm, leathery.
1–15, light brown, 4–8 mm.
1 or 2, often dull mustard-yellow, sometimes light brown, 4–5 mm.
= 18.
= 36, 54.
Sophora tomentosa
Sophora leachiana
Subspecies ca. 7 (2 in the flora).
Sophora tomentosa is polymorphic and has a worldwide distribution along tropical and subtropical seashores. The seeds are considered toxic and have diuretic, sudorific, and purgative properties; they are also used for other medicinal purposes (R. A. Vines 1960).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Sophora leachiana is known from the Siskiyou Mountains of Josephine County along the drainages of Briggs, Galice, and Taylor creeks, in dry, often disturbed sites, both natural and human-derived, and surrounded by pine, Douglas-fir, oak, and hardwood forests. It aggressively colonizes open areas and dies out once the forest cover is reestablished; seed-set is low (C. A. Crowder 1978). Sophora leachiana is hypothesized to be closely related to the North American species S. nuttalliana and S. stenophylla, and to the Asian species S. alopecuroides Linnaeus (Crowder 1982).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflet blades mostly obovate or oblong; flowers (17–)20–23 mm. | subsp. bahamensis |
1. Leaflet blades broadly elliptic or suborbiculate; flowers 23–25 mm. | subsp. occidentalis |
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