Geranium sanguineum has a
hemicryptophyte plant life-form, with its overwintering buds situated just below the soil surface, and the
floral axis more or less erect with a few leaves. It has a thick
rhizome. The stems are prostrate to ascending, well developed, much branched, and hairy. It reaches on average in height. The
petiolate leaves have five lobes (or segments), each segment is tripartite with large teeth. The flowers are produced singly (not in clusters, as in many other
Geranium species), 2.5–4 cm diameter, with petals 12–18 mm wide, and are bright crimson. The flowering period extends from May to October. The flowers are
hermaphrodite and pollinated by insects (
entomophily). The most common flower visitors are Syrphidae and Hymenoptera, but also butterflies and Coleoptera. The fruit is a
schizocarp that breaks up into five
mericarps when ripe. ==Distribution==