A rather small, stoloniferous herb, growing on trees, logs, and rocks; stem 1-2 mm. thick, ascending to 10-15 cm., subappressed-villous, rooting at the nodes, internodes 1-3 cm. long below, reduced upward; leaves alternate, lance-elliptic or suboblanceolate, apex acute, base acute to cuneate, 1-1.5 cm. wide X 2-4 cm. long, or occasional leaves up to 2 X 5.5 cm., 5-nerved, the innermost pair of lateral nerves commonly coalescing with the midrib near the base, glabrous above or rarely