Dammer ex Burret
Bot. Jahrb. Syst. 63: 221 (1930)
Understorey or subcanopy palm. Stem solitary, to 12 m tall and 15 cm in diameter. Leaf blade 150-250 cm long, with up to 50 unequal segments on each side, these strongly folded logitudinally and very hard in texture, usually somewhat shining above, spreading in one or several planes. Inflorescence branched 3-4 times, to 60 cm long and at least as wide; peduncle stout, 40-65 cm long; prophyll and peduncular bract of equal length, smooth or somewhat furrowed, deciduous; flower bearing branches 25-30 cm long, 8-12 mm in diameter, folded in bud; flower pits loosely arranged, 4-7 mm apart, large, 2-4 mm across, with a conspicuous upper lip. Female flowers with staminodes united into a tube. Fruits bluish black, to 15 mm in diameter.
Throughout the Andes from Colombia and Venezuela to Bolivia, in premontane and lower montane forest, often left over in pasture. In Ecuador it is known only from the E cordillera. It is less common than G. undata, and tends to occur at higher elevations than that species.
A poorly understood species, closely related to G. densa and G. undata.
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