Family, Knotwort. Color, greenish white. Leaves, minute, very narrow, with small stipules.

A difficult plant to analyze, on account of the minuteness of the flower, which can be studied only under a magnifying-glass. It will then be seen to be minus corolla, with a dry, leathery calyx of 5 sepals, 2 or 3 stamens, 2 stigmas. Flowers, nearly sessile, clustered. Fruit, 1-seeded, bladder-like. Height, 1 to 2 feet. Stem forking many times into spreading branches. The minute flowers lie in the forks. Summer.

Open woods, New England to Florida, and westward.