(Jacq.) Sandw., Kew Bull. 1953:460. 1954
Tendrils simple; pseudostipules inconspicuous. Leaves glabrous with tufted axils beneath. Corolla lavender to magenta. Capsules linear, 12-47 cm long, 1.6-2 cm wide, conspicuously glandular-pitted. Stoutamire 2085 (MICH).
Rare, if still present; known from a single recently discovered collection made in 1956 at the Rear Lighthouse Clearing. Flowers during the dry season, from February to April.
Mexico to Argentina. Most common in tropical dry forest and premontane moist forest, especially in edaphically dry locations.