Phaseolus angustissimus
species of plant

Phaseolus angustissimus (common name slimleaf bean) is a perennial, herbaceous vine of the Fabaceae (legume) family, native to the American Southwest (particularly, Arizona, New Mexico, and Texas), as well as northern Sonora, Mexico. It is a close relative of the cultivated tepary bean (P. acutifolius), also native to the same region.
Description
Phaseolus angustissimus is a perennial, herbaceous vine (to 2 meters) which trails along rocky, eroded hillsides. Its leaflets are distinctively narrow and waxy, it has a very deep, slightly thickened taproot, its flowers are magenta to purple and face upwards from the ground, and its pods are small and curved, yielding 2-4 seeds with a ridged seed coat and hypogeal germination. P. angustissimus has shown freezing resistance in field trials in Canada.
Uses
The Zuni people rub the crushed leaves, blossoms and powdered root on a child's body as a strengthener.
This brief starts where responsible research should: with the source description of “Phaseolus angustissimus” as species of plant. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 18, 2025. The linked authority identifier is Q7180983. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Phaseolus angustissimus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.