This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this plant is damp, shady places, and banks in the S. and S.W. The habit is trailing, prostrate. The stem is creeping, thread-like, slender, the hairs limp and jointed. The leaves are alternate, round to kidney-shaped, 7-9-lobed, the lobes broad, rounded, notched, long-stalked, scalloped. The flowers are small, pink, solitary, in the axils, on short stalks. The calyx and corolla are 5-lobed, the sepals lance-shaped, 2 of the petals yellowish. There are 4 stamens. The capsule is very small. The plant is 6-12 in. long, flowering from June to September, and is a herbaceous perennial.