Ipomoea elongata

Description. Trailing or twining perennial, stems slender, nearly glabrous. Leaves petiolate, 2.3 - 5.5 x 1 - 2 cm, deltoid, acuminate to an aristate point, base sagittate with elongate, lanceolate or ovate, acute, sometimes bifurcate auricles, margin entire, undulate or with a few broad teeth, both surfaces glabrous to thinly pubescent, abaxially paler; petioles 1 - 3 cm, thinly pubescent. Inflorescence of solitary (rarely paired) pedunculate, axillary flowers; peduncles 5 - 48 mm, sometimes penetrating leaf sinus, thinly pubescent bracteoles 1 - 2 mm, deltoid; pedicels 3 - 19 mm, commonly bent at right angles to peduncle, thinly pubescent; sepals unequal, outer (5 -) 8 - 9 x 2 - 2.5 mm, lanceolate, acuminate, glabrous but often muricate on dorsal surface, inner (8 -) 9 - 11 x 3 mm, oblong, obtuse, mucronate, margins broadly scarious; corolla 6 - 10 cm long, narrowly funnel-shaped with a long gradually widening paler tube, glabrous, midpetaline bands terminating in a distinct tooth, limb pink 3.5 - 4 cm diam. Capsules subglobose, glabrous; seeds 4, 6 - 7 x 4 - 5 mm, puberulent.