Clematis pitcheri Torr. & A.Gray

Stems viny, to 4 m, very sparsely short-pilose, sometimes nearly glabrous. Leaf blade mostly 1-2 pinnate, many leaves simple; primary leaflets 2-8 plus additional tendril-like terminal leaflet, deeply 2-5-lobed or unlobed or 3-foliolate, leaflets or major lobes lanceolate to broadly ovate, 1-11 × 1-6 cm, leathery (thin in var. pitcheri ), ± prominently reticulate adaxially; surfaces abaxially nearly glabrous to densely pubescent, not glaucous. Inflorescences axillary, 1-7-flowered. Flowers ovoid to urn-shaped; sepals pale to dark bluish or reddish purple, sometimes whitish toward tip, ovate-lanceolate, 1.2-3(-4) cm (larger sepals mostly in w part of range), margins narrowly expanded distally to about 1 mm wide, thin, crispate toward tip, tomentose, tips acuminate, recurved, abaxially sparsely to densely appressed-puberulent. Achenes: bodies appressed-pubescent; beak 1-3 cm, nearly glabrous to ± appressed-pubescent or silky.