Babeiro

Herbaceous vine, twining, 1-5 m in length,
with watery latex. Stems green, cylindrical,
slender, lenticellate, becoming hollow on drying.
Leaves opposite; blades 4-19 × 3-9 cm, oval, ovate,
rounded, or sometimes lanceolate, glabrous,
chartaceous, the apex obtuse, acute, shortacuminate,
or subrounded and mucronate, the base
obtuse, rounded, or truncate, lacking glands and
usually asymmetrical, the margins entire or
undulate, revolute; upper surface dull green; lower
surface pale green, dull, with a prominent
midvein; petioles 0.5-4 cm long, canaliculate,
pubescent; stipules intrapetiolar and interpetiolar,
minute, acicular. Flowers in small axillary or
terminal cymes. Calyx green, 2-3 mm long, with
5 ovate lobes, ca. 2 mm long; corolla
infundibuliform, the tube greenish or creamcolored,
4-6 mm long, with 4 ribs, pilose inside,
the limb pale yellow or cream-colored, with 5
oblong lobes, reflexed, 2-4 mm long. Follicles
linear, 10-25 cm long, divaricate when mature;
seeds numerous, 5-7 mm long, light brown, with
cream-colored, silky hairs.