Stem. - Slender, about two feet high. Root-leaves. - Divided into from three to five leaflets, or entire. Stem-leaves. - Three-lobed or divided, or only toothed. Flowers. - White. Calyx. - Deeply five-cleft, usually with five small bractlets alternating with its lobes. Corolla. - Of five petals. Stamens. - Numerous. Pistils. - Numerous, with hooked styles which become elongated in fruit.

The white avens is one of the less noticeable plants which border the summer woods, blossoming from May till August. Later the hooked seeds which grow in round burr-like heads secure wide dispersion by attaching themselves to animals or clothing. Other species of avens have more conspicuous golden-yellow flowers.