Xanthosoma aureum E.G.Gonç.

Herb up to 1.15 m tall. Stems hypogeous or occasionally epigeous, rhizomatous, cylindrical, up to 7 cm in diameter and sometimes up to 5 cm tall, densely covered by brown fibers, producing sparse cormels. Leaves 2-5 per plant; petioles 60-100 cm long, golden green, poorly waxy, sheathed up to 1/2 of its length, sheath erect or slightly convolute; leaf blade 41-48 x 44-46 cm, sagittate in young individuals, sagittate to subhastate in mature plants, golden green to clear green abaxially, matte pale green abaxially, primary lateral veins 6-7 per side, arising at an angle of 80-85°, slightly discolorous to concolorous adaxially, concolorous abaxially, apex acuminate; basal ribs denuded for .3-1.5 cm, basal lobes slightly extrose, obtuse to round at apex. Inflorescences 1-3 per axil, peduncle 15-17 x .4-.5 cm; spathe 11-15 cm long, tube ovoid 6-7 x 4-6 cm, yellowish green outside, white inside, lamina 13-14.5 x 2.5-5 cm, ivory green in both sufaces; spadix 9.5-11.5 cm long, fertile male portion yellowish-white 6-7 x .7 cm, sterile male portion 1.5-2 x .8-1 cm, white, weakly dimorphic, female portion conoid, 2-3 x .8-1 cm, dark ferrugineous.