Description

This small vine is slightly woody, forming a low mat of evergreen leaves up to 4' tall and 1' or more across. The stems are mostly light green to light brown and either glabrous or hairy; old stems become brown, smooth, and woody. Pairs of opposite leaves occur along these stems on short petioles up to ¼' long. The leaves are ¼-1' long and similarly across; they are oval to orbicular in shape and smooth to slightly undulate along their margins. The upper leaf surface is glabrous, shiny, and mostly dark green, although it is often nearly white along the central vein and some of the lateral veins. The lower leaf surface is glabrous and more pale. Pairs of upright flowers occur at the tips of branches or from the axils of leaves. Each flower has a hairy white corolla about ½' long, 4 stamens, and a pistil with single style. Each pair of flowers share the same short-tubular calyx. The corolla is trumpet-shaped with 4 spreading lobes, while the calyx is light green with tiny teeth along its upper rim. There are 4 filiform stigmata per style. There are two types of flowers