Phaseolus grayanus Woot. & Standl.
Family: Fabaceae
Gray's bean
Phaseolus grayanus image
Max Licher  
Kearney and Peebles 1969, McDougal 1973
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Herbaceous perennials, arising from a thick, woody taproot, this up to 3 cm in diameter, stems trailing to twining. Leaves: Pinnately trifoliate, leaflets broadly deltoid, up to 5 cm long, mostly deeply lobed, the veins not prominent and noticeably reticulate on the underside. Flowers: Pinkish-purple, borne in loose, axillary racemes, the peduncles up to 25 cm long. Fruits: Pods falcate (sickle-shaped), persistently pubescent, 3-4 cm long, the style in fruit stout, to 1 mm long. Seeds round, smooth, and relatively large. Ecology: Found from 5,000-8,500 ft (1524-2591 m); flowering July-September. Distribution: Texas, Arizona; Mexico. Notes: The keys to this species are the relatively large, deeply lobed, deltoid leaflets up to 5 cm long, the purplish-pink flowers, and the peduncles up to 25 cm long. Ethnobotany: There is no specific use recorded for the species, but the genus has uses; the seeds were parched and ground to make mush and soup. Synonyms: None Editor: LCrumbacher 2011 Etymology: Phaseolus comes from the Greek phaselos, "a little boat or light vessel," referring to its similarity to a bean pod, this name became the Latin phaseolus used for a kind of bean, while grayanus is named after Asa Gray (1810-1888), one of the most eminent American botanists and professor at Harvard, who played an important part in the identification of many Sierra wildflowers.
Phaseolus grayanus image
Max Licher  
Phaseolus grayanus image
Max Licher  
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Frank Reichenbacher  
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Frank Reichenbacher  
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image
Frank Reichenbacher  
Phaseolus grayanus image
Phaseolus grayanus image
Phaseolus grayanus image