This is a smaller species of the Meadow Rue, and it grows from one to two feet high in open woods and along rocky hillsides, during April and May, from Labrador to Alabama, and westward to Missouri. It is slender and branching, and the thin, slightly drooping leaflets are generally formed in groups of three. They are broader and more rounding than those of the Tall species, and their margins are partly scalloped. The staminate and pistillate flowers are borne on separate plants and contrast noticeably with each other. The pretty, tasselled blossoms of the former have many long, brown-tipped, pale green stamens. The pale green pistillate flowers are less conspicuous, with their four or more pistils. The flowers have from three to five petal-like sepals. The leaf and flower stems are thin and delicate, and contribute to the plant's daintiness.
The Purplish Meadow Rue, T. revolution, flourishes between the Early and the Tall species. It grows from one to seven feet high in dry, rocky woodlands, and along river banks from Nova Scotia to Florida, and westward to Arizona, during June, July and August. The stem is often stained with purple, and the rather large, thick, dark green leaves are waxy beneath, have three notches and are more or less hairy to the touch. The flowers are tinged with purple. The plant emits a heavy odour.