Herbaceous dicot. Cluster of perfect flowers at stem tip. White corolla 4-lobed, sepals absent. Leaves in rings of 4 (mostly), stems erect, flowers 3-5 mm wide, in branched clusters.
Flower clusters flat-topped, 1X as long as wide, leaves <3X as long as wide, petals white, secondary veins not prominent. Leaves simple, coarse-toothed mainly near the tip.
In damper area of forest.