FlowersShowy, purplish blue, about 3 in. across; 4 sepals, broadly expanded, thin, translucent, strongly veined, very large, simulating petals ; petals small, spoon-shaped ; stamens very numerous ; styles long, persistent, plumed throughout. Stem: Trailing or partly climbing with the help of leafstalks and leaflets. Leaves: Opposite, compounded of 3 egg-shaped, pointed leaflets on slender petioles.
Preferred Habitat–Rocky woodlands.
Flowering SeasonMay June.
DistributionHudson Bay westward, south to Minnesota and Virginia.
The day on which one finds this rare and beautiful flower in some rocky ravine high among the hills or mountains becomes memorable to the budding botanist. At an elevation of three thousand feet in the Catskills it trails its way over the rocks, fallen trees, and undergrowth of the forest, suggesting some of the handsome Japanese species introduced by Sieboldt and Fortune to Occidental gardens. No one who sees this broadly expanded blossom could confuse it either with the thick and bellshaped purple Leather-flower (C. Viorna), so exquisitely feathery in fruit, that grows in rich, moist soil from Pennsylvania south-ward and westward; or with the far more graceful and deliciously fragrant purple Marsh Clematis (C. crispa) of our Southern States. The latter, though bellshaped also, has thin, recurved sepals, and its persistent styles are silky, not feathery at seed-time. ClematisTheodore Roosevelt – Beauty Of White House GroundsHardy Perennials Anyone Can GrowVirgin’s Bower; Virginia Clematis; Traveller’s Joy; Old Man’s Beard – FlowersGardens – Garden Boundaries