Flora of Barro Colorado Island

Heliconia irrasa

Lane ex R. R. Smith, Phytologia 30:68-70.1975

Caulescent, rhizomatous herb, 1.5-2 (3) m tall, of musace­ous habit; stem slender, to ca 5 cm diam. Petioles to ca 50 cm long, woolly-pubescent around sheath; blades oblong to oblong-ovate, acuminate, obtuse to rounded at base, 30-100 cm long, 7-30 cm wide; major veins 3-7 mm apart. Inflorescence erect, or nodding in fruit, densely villous-woolly throughout; peduncle 15-30 cm long; rachis moderately flexuous; bracts usually 6-8, the lower­most often leafy, the others spirally arranged, 6-17 cm long,    long-acuminate, usually curling on ends, broad­est near base, densely villous, 2-6 cm high, orange to yellowish-brown, the free margin red and undulate; internodes of lower bracts 2-3 cm long; flowers 5-6 cm long; perianth yellow, 4-5.2 cm long. Fruits broadly triangular, ca 1 cm long, ca 6 per bract, greenish to yellow, becoming purple. Croat 12194.

Occasional, in moist shady areas of the older forest. Flowers primarily from June to September, sometimes as early as April. The fruits mature mostly from September to December.

Distinguished by the erect inflorescence with yellowish, densely pubescent bracts that are often curled on the ends.

Known only from Panama from tropical moist forest in the Canal Zone, Colon, Panama, and Darien, from premontane moist forest in Coclé and Panama, and from tropical wet forest in Colon and Coclé (La Mesa).

See Fig. 144.

Photos from STRI Digital Archive

  • Heliconia irrasa Inflorescence
  • Heliconia irrasa Inflorescence
  • Heliconia irrasa flower plant
  • Heliconia irrasa flower plant
  • Heliconia irrasa immature-fruit
  • Heliconia irrasa
  • Heliconia irrasa
  • Heliconia irrasa flower