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Asclepias uncialis subsp. uncialis  
Family: Apocynaceae
wheel milkweed
Asclepias uncialis subsp. uncialis image
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JANAS 27(2)
STEMS: to 5-10 cm long; leaf blades lanceolate, grading to linear above, pubescent only on the margins and veins. FLOWERS: relatively small, the corolla lobes 3-4 mm long, the column 0.4-0.6 mm high, the anther wings 1.1-1.4 mm long; hoods with the marginal lobes well developed, the horns tangentially flat, ovate. NOTES: See also parent taxon. Known in AZ from two collections: White Mts. near Springerville, Apache Co. and foothills of Patagonia Mts. near Sonoita, Santa Cruz Co.; open woodlands, high desert scrub; 1500-2150 m (5000-7000 ft); Mar-May; CO, w NM, wOK. REFERENCES: Sundell, Eric. 1994. Asclepiadaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 169-187.
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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