Plant: perennial herb; tuberous roots; stems prostrate but twining near the tips, glabrous Leaves: orbicular in outline, palmately 5-9 lobed, the lobes linear to lanceolate, 1-7 cm long, 0.5-6.5 mm wide, entire, glabrous, the base cordate, the petioles 2-38 mm long INFLORESCENCE: mostly 1-flowered; peduncles (1-)5-39 mm long; bracts linear to deltoid-attenuate, 1-3 mm long Flowers: pedicels (0-)2.5-8 mm long, recurved in fruit; sepals unequal with scarious margins, the outer oblong-lanceolate, 5-11.5 mm long, 2-3 mm wide, muricate along the midrib or almost smooth, mucronate, the inner 8-9 mm long, 3-4 mm wide, obovate-acuminate, smooth; corollas funnelform or salverform, glabrous, 3.5-10 cm long, completely white or white with pale rose to purple limb, the limb 3-3.6 cm wide; stamens exserted, the filaments 8-19 mm long, the anthers 2-2.5 mm long; ovary ovoid, 1.5-2 mm long and wide, 2-locular, glabrous; styles 30-36 mm long; stigmas 2, globose Fruit: FRUITS globose to broadly ovoid, 4-8 mm wide, the apiculum 4-5 mm long. SEEDS 1-4, 3.5-5 mm long, ovoid, black to dark brown, finely appressed tomentose Misc: Oak and pinyon-juniper woodlands; Aug-Sep REFERENCES: Austin, Daniel F. 1998. J. Ariz. - Nev. Acad. Sci. Convolvulaceae 30(2): 61.