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Macroptilium supinum
Macroptilium supinum is a species of flowering plant in the legume family known by the common name supine bean. It is native to Mexico, with its distribution extending north into the US state of Arizona.
This perennial herb has stems that creep across the ground, growing from a tuber. The leaves are each made up of three lance-shaped leaflets up to 8 cm long. Two types of flowers are seen. Aboveground flowers are salmon-colored. Other flowers grow underground or under debris, do not open, and self-fertilize. They are yellow and salmon-colored and smaller than the opening flowers. The fruit is a legume pod up to 1.5 cm long. Most seeds are produced in fruits that develop underground.
Text excerpted from the Wikipedia article Macroptilium supinum 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.
