Flora of Barro Colorado Island

Jacaratia spinosa

(Aubl.) A. DC., Prodr. 15 (1):419. 1864

Dioecious tree, 20-40 m tall; trunk 0.8-1 m dbh, armed or unarmed, branched near apex, the branches slender, short, ascending, armed with short, stout, conical spines at least near their ends. Leaves palmately compound; petioles 10-25 cm long; leaflets 5-12, lanceolate, acumi­nate at apex, narrowly attenuated at base to an obscure petiolule 6-18 cm long, 2-6 cm wide, dark green above, glaucous below. Staminate inflorescences pedunculate, laxly cymose, 7-9 cm long; peduncles 6-12 cm long; bracts minute; pedicels    3-4 mm long; flowers many, tubular; calyx tube 1 mm long; corolla greenish-white, the tube 10-14 mm long, 3-4 mm wide, the lobes ovate-­rounded, 7-8 mm long; stamens 8, in 2 unequal series, united in a short tube; filaments pilose; pistillode filiform, to 11 mm long. Pistillate flowers usually solitary, the other flowers not developing; peduncles 8-10 cm long; bracts 11-13 mm long; calyx tube 1-1.5 mm long; corolla divided almost to base, the tube 2 mm long, the lobes fleshy, 2-3.3 cm long, 7 mm wide; ovary narrowly ovoid, sub­pentagonal, 11-20 mm long; styles lacking; stigmas 5, narrowly linear, 7-8 mm long. Fruits ± ellipsoid, some­times ovoid, obtuse or sometimes apiculate at apex, obtuse at base, to 12 cm long and 3.5 cm diam, pendent, yellow or orangish; seeds many, ovoid. Foster 2816.

Collected once on Balboa Trail. Seasonal behavior uncertain. Some flowers have been seen in March and mature fruits in September.

Nicaragua and the Guianas to northern Argentina, probably from Colombia and Venezuela. In Panama, known only from tropical moist forest on BCI and from tropical wet forest in Colon.

Photos from STRI Digital Archive

  • Jacaratia spinosa
  • Jacaratia spinosa
  • Jacaratia spinosa Leaf
  • Jacaratia spinosa Leaf
  • Jacaratia spinosa Leaf
  • Jacaratia spinosa Leaf