Silky morning glory

Perennials, root oblong, rela­tively large. Stems twining. Leaf blades cordate, ovate, or 3–5-lobed, 20–80 × 20–90 mm, base cordate, lobes elliptic to ovate, surfaces ± hirsute or coarsely sericeous. Peduncles hairy, hairs retrorse or spread­ing. Flowers: sepals lance-ovate to ovate, 9–21 × 2–11 mm, herbaceous, abaxial surface ± hispid or coarsely sericeous; corolla blue to violet, funnelform, 55–80 mm, limb 60–70 mm diam.

Flowering Aug–Sep. Rocky sites, stream beds, oak woodlands; 100–1600 m; Ariz., N.Mex., Tex.; Mexico; South America.