Small herb with long, usually slender, cylindric, horizontal rhizome 0.8–1 cm. in diameter.
Pistillate flower: pistil laterally flattened, ovate, 3 mm. long, 2 mm. broad, ovary 2-locular, locules uniovulate, placentation at base of septum; stigma 1–1.5 mm. broad, ± discoid, green.
Staminate flower: staminal tube equalling tepals; anthers not exserted.
Inflorescence solitary, sessile at soil-surface; peduncle 1 cm. long or less, 0.3 cm. in diameter, subterranean, subtended by 3–5 ovate-oblong cataphylls 0.3–2 cm. long.
Leaf solitary on each shoot, subtended by linear cataphyll ± reaching middle of petiole; petiole terete, 6.5–10 cm. long, 1–1.5 mm. in diameter, erect to spreading, green; pulvinus basal, oblong, 1–1.5 cm. long, 0.4 cm. in diameter; blade bipinnately compound, cordate-sagittate in outline, 10–11 cm. long, 9–10 cm. broad; pinnae opposite, pinnately lobed; ultimate lobes linear-lanceolate to oblanceolate-elliptic, 1–7.5 cm. long, 0.2–2 cm. broad, acute to subacute, cuneate, decurrent, green, slightly paler beneath.
Spadix 2–3.7 cm. long, slightly shorter than spathe; staminate part cylindric to clavate, 1.2–2.2 cm. long, 0.5–0.6 cm. in diameter, apex rounded, base narrowing, with tepals cream, pistillodes white, equalling tepals; sterile part centrally constricted, 0.5–1.2 cm. long, 0.3–0.5 cm. in diameter, tepals greenish cream, pistillodes prominent; pistillate part conic, 0.4–0.6 cm. long, 0.7–0.9 cm. in diameter, tepals pinkish brown.
Spathe 3–4.5 cm. long; tube broadly and shortly ovoid, constricted at apex, 0.6–1 cm. long, 0.7–1 cm. in diameter, pale pinkish brown on outer surface; limb ovate to lanceolate, 2–3.5 cm. long, 1.7 cm. broad, cuspidate, spreading to reflexed when anthers dehisce, pale pinkish brown with whitish margins.