Railway creeper

Annuals. Stems usually twining, sometimes trailing. Leaf blades deltate, ovate, or ovate-elongate, 24–80 × 8–87 mm, base cordate or ± sagittate to truncate, mar­gins sometimes 3-toothed, sur­faces glabrous. Peduncles pilo­sulous on proximal 1–2 mm, distally glabrous. Flowers: sepals elongate-ovate to ovate, 3.5–8 mm, chartaceous or coriaceous, apex acute to obtuse, abaxial surface dotted with dark spots; corolla usually dark lavender to pink, rarely white, funnelform, 15–28 mm.

Flowering Aug–Oct. Open, dry to wet sites, washes; 2000–2800 m; N.Mex., Tex.; Mexico; South America.

In the flora area, Ipomoea dumetorum is known from the Davis, Organ, and White mountains. The names I. cardiophylla and I. pulchella (Kunth) G. Don (not Roth) have been misapplied to plants of I. dumetorum.