Plant with hysteranthous leaves, although leaves often appear at the same time as the inflorescence but from a different growing point, inflorescence up to 600 mm high. Tuber simple or compound, irregularly-shaped, oblong or roundish, sometimes with warty bumps, up to 100 mm long, and 40 mm wide; some populations with stolons up to 80 mm long and 3 mm diameter with a growing point at the apex; skin thin, light brown, interior white; growing point lateral. Old leaf sheaths up to 100 mm long and 25 mm wide, reddish-brown becoming darker with age, membranous. Leaf solitary, erect; contemporary leaf sheath exserted 100-150 mm, red at the base becoming green above, almost glabrous or covered with short straight transparent hairs; lamina broadly ovate-cordate, up to 150 mm long and 85 mm wide, green on both surfaces, roughish, either glabrous or sparsely to densely covered with short hairs on the underside. Peduncular bract sheathin.g part up to 140 mm long, glabrous, red; non-sheathing part ovate, up to 70 mm long and 30 mm wide, light green, glabrous or rarely finely pubescent. Peduncle up to 500 mm long, 5 mm diameter at the base, green, glabrous. Raceme narrowly cylindrical, about 200 mm long and 15-30 mm wide, with 50-90 flowers. Bracts triangular to boat-shaped, acuminate, 2.5-3.0 mm long, semi-amplexicaul, white or brown, membranous. Pedicels 3-40 mm long, green to brownish-green, erecto-patent. Flowers cyathiform, about 4 mm across the opening. Tepals equal to sub-equal, connate for about 1 mm at the base, either all white to very pale green with a darker green midnerve often covered with red stippling, or outer tepals uniformly dark green or brown, 4-6 mm long and 2-3 mm wide, outer erecto-patent, elliptic, inner more erect, spathulate with a somewhat cucullate and fimbriate apex. Filaments forming a ring round the ovary, adnate to the base of the tepals for about 1 mm; equal to sub-equal, ovate or broadly lanceolate, 2.3 mm long and 1.0-1.5 mm wide, narrowed and curved at the apex to support the anther, white; anthers 0.8 mm long, yellow. Ovary globose, 1.5 mm long and wide, green. Style cylindrical, 1 mm long, yellow. Fruit obovate, emarginate, 8 mm long, 7 mm wide. Copious nectar is produced at the base of the filaments.