Stem. - Low, two-leaved. Stem-leaves. - Opposite, deeply incised. Root-leaves. - Incised or divided. Flowers. - Deep yellow, large, one or more at the summit of the stem. Calyx. - Of two hairy sepals. Corolla. - Of four petals. Stamens. - Many. Pistil. - One, with a two to four-lobed stigma.

In April or May, somewhat south and westward, the woods are brightened, and occasionally the hill-sides are painted yellow, by this handsome flower. In both flower and foliage the plant suggests the celandine.