The five white or pale pink petals of geranium richardsonii
flowers have rounded tips and are crossed by branched, purple veins (usually thin, sometimes thick and dark), running lengthwise; they are separated by green sepals (underneath), which have a hairy surface and a protruding, reddish spike at the tip. Petals are hairy towards the base. The center of the flower is greenish, with ten stamens, curving back somewhat. The branched stalks are red or green in color and quite hairy; the hairs are topped by tiny red gland, as are the hairs on the narrow, tubular green fruits.
The divided, pointed-lobed leaves grow around the base and at widely-spaced intervals up the stem, on long stalks. Leaf edges and surface have a covering of short hairs. Tips and edges of the leaves take on a reddish color as they age. The plant has wide distribution, from Canada to Arizona and New Mexico, and forms hybrids.