Plant: perennial herb; stems sparsely to densely appressed pubescent Leaves: chartaceous to herbaceous; blades orbicular, 8-20 mm long, 7-19 mm wide, the apex rounded or usually shallowly emarginate, the margins entire, the base cordate with shallow to deep sinuses, the lower surface densely pubescent with a silvery sheen, the upper surface green in contrast, the difference most notable on younger leaves, the petioles 0.5-7 cm long, weak, curved INFLORESCENCE: of solitary flowers on erect, nodding or recurved peduncles; bracteoles 2, scale-like Flowers: pedicels 5-35 mm long, erect, to slightly nodding or curved but not recurved in the upper part; calyx campanulate, the sepals obovate to obovate-spatulate, 1.5(-2.5) mm long, to 3.3 mm in fruit, 1 mm wide at widest point, sericeous on outer surface, remotely sericeous within; corolla yellow-green, campanulate, slightly shorter than the calyx, 1.5(-2) mm long, 5-lobed with sinuses nearly reaching the base, the lobes lanceolate, acute, glabrous Fruit: FRUITS capsular, indehiscent or tardily dehiscent and circumscissile, 2-3.5 mm long, 1.8-2.5 mm thick, falling in 2 parts or 1, each half dehiscing loculicidally. SEEDS pyriform, 1.5(-2.1) mm long, brown Misc: Riparian; 550-1300 m (1800-4200 ft); Mar-Apr REFERENCES: Austin, Daniel F. 1998. J. Ariz. - Nev. Acad. Sci. Convolvulaceae 30(2): 61.