Cliff morning glory

Perennials, rhizomatous. Stems trailing or twining. Leaf blades usually cordate-ovate to oblong-ovate, sometimes pandurate, 30–90 × 20–70 mm, base cordate-hastate, margins sometimes indented, rarely lobed or toothed, surfaces tomentulose, glabrescent. Peduncles hairy, tomentulose, hairs ± appressed. Flowers: sepals elliptic-oblong to oblong-ovate, 12–14 mm, coriaceous, apex obtuse, rounded, or subacute; corolla lavender-pink or purple, throat darker inside, funnelform, 70–90 mm. Seeds hairy.

Flowering Jun–Oct. Rocky, open sites; 20–1800 m; Tex.; Mexico (Tamaulipas).