Chickweed Winter-green, in botany: A genus of plants belonging to the class of heptandria, and order of monogyria; and in the natural system ranging under the 20th order, Rosaceae. The calyx is hypophyllous; the corolla is equal and plane, and is divided into seven segments; the berry is unilocular and dry. There is only one species, the European; which is indigenous, and the only genus of heptandria that is so.

The stalk is single, five or six inches high, terminated with five, six, or seven, oval pointed leaves; from the centre of which arise on long footstalks commonly two white starry flowers, each generally consisting of seven oval and equal petals, succeeded by a globular dry berry, covered with a thin white rind, having one cell, and containing several angular seeds.