Standl., Field Mus. Nat. Hist., Bot. Ser. 12:412. 1936
Scandent shrub, often to 30 m long; larger stems armed with stout spines (straight on juveniles, recurved on adults); smaller stems sometimes square; branchlets puberulent with minute trichomes, glabrous in age; tendrils forked, the arms coiled like watchsprings. Petioles ca 3 mm long, puberulent with minute trichomes; blades lanceolate to narrowly elliptic, very long-acuminate, obtuse to rounded at base, 2.5-14 cm long, l-4 cm wide, glabrous except for puberulent midrib below and tufted axils (with short white trichomes) of central pair of veins, entire, minutely and conspicuously undulate on margins, pliveined, the veins 3 (5), the secondary lateral veins ± conspicuous in apical two-thirds of blade. Paniculate cymes terminal, usually hemispheric and bearing many flowers; calyx lobes (4) 5, lanceolate to narrowly ovate, acute to acuminate, l-2 mm long; corolla ca 2 cm long, (4) 5-lobed almost to base, the tube ca 0.6 mm long, the lobes oblong, obtuse, densely villous inside, ca twice as long as tube; anthers 5, ca 0.6 mm long, glabrous. Fruits globose, 6-7 cm diam, orange-yellow at maturity; exocarp ca 6 mm thick, smooth; seeds 5-11, obliquely pyramidal, 12-17 mm long, the mesocarp yellowish, tasty. Croat 14475.
Apparently rare in the forest; collected once on Drayton Trail. Seasonal behavior uncertain. Flowers in June and July. Old fruits have been seen in September.
Mexico south along the Atlantic slope of Belize, Guatemala, and Nicaragua to Panama. In Panama, known only from tropical moist forest in the Canal Zone.