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Orbexilum onobrychis
Also called Lance Leaf Scurfpea
Orbexilum onobrychis, commonly called French-grass or lanceleaf scurfpea, is a species of flowering plant in the legume family (Fabaceae). It is native to the eastern United States where its range is concentrated in the Midwest and Upper South. Its natural habitat is primarily prairies and riverbanks, typically in mesic or wet areas. It is an uncommon species, and can be found in high-quality prairie remnants as well as more disturbed areas.
It is a rhizomatous perennial that forms large colonies. It has pinnately trifoliate leaves, with large lanceolate leaflets. Its flowers are pale blue or purple, and produced in racemes. Bloom time is from late spring to early summer. Its fruits are beans, which are 6–8 mm long and distinctively warty.
Piedmont Leather Root · Sampson's snakeroot · Singlestem leather-root · Largestipule leather-root · Pineland leather-root · Leather-root
Text excerpted from the Wikipedia article Orbexilum onobrychis by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
