Low-growing creeping silky-pubescent herb; stems finely grooved, slender, branching, with appressed hairs, rooting at nodes, up to 3 dm. long; plant often forming rather open patches up to c. 5 dm. diam. Lvs alt., sts in clusters of 2 or more at nodes; petioles slender, up to 3 cm. long; lamina ± (6)-10-20-(25) mm. diam., suborbicular to reniform, emarginate or rounded at apex, cordate at base with narrow sinus, silky-hairy on both surfaces. Peduncles very slender to filiform, up to c. 5 cm. long; basal bracts linear. Fls c. 4-5 mm. diam.; sepals obovate, silky, c. 4 mm. long; corolla c. 5 mm. long, greenish yellow, lobes narrow-spathulate, ± apiculate. Capsule c. 2-3 mm. diam., globose, hairy, enclosed in persistent calyx.

n = 15

2n = 30

Prostrate herb, generally with appressed, silky hairs, creeping and forming mats to 50-(70) cm diam. Petioles occasionally to 10 cm long. Lamina very variable, (0.5)-10-30-(40) mm diam., orbicular to reniform, often with upper and lower surfaces equally densely hairy; base cordate with very shallow to narrow and deep sinus; apex usually rounded, less commonly emarginate. Peduncles to c. 5 cm long, usually much less; bracts at base linear, inconspicuous. Calyx 3-4 mm long; lobes oblong to elliptic, ± acute. Corolla 4-6 mm diam., c. = to calyx, greenish yellow. Anthers yellowish. Capsule 1.5-2.5 mm diam., globose or nearly so, hairy, < to almost = calyx.