Homalomena occulta (Lour.) Schott

Rhizome creeping; terminal part of stem erect, 30–50cm tall; cataphylls and prophylls linear-lanceolate, 15–16 × ca. 2.5cm. Petiole 25–40cm, proximal part with 2–5 mm wide sheath; leaf blade sagittate-cordate, 15–30 × (8–)15–28cm or usually more; primary veins 7 per side, 2–4 of these basal, downward to basal lobes and then arching into leaf margin, secondary and tertiary ones thinner, numerous. Inflorescences 1–3 together; peduncle shorter than petioles, 10–15cm. Spathe pale green, oblong or elliptic, 5–6.5 × 3–3.2cm, fusiform before anthesis, distal part slightly spreading and shortly boat-shaped at anthesis, 5–6cm wide when spread out completely, apex with a beak ca. 1cm. Spadix sessile or shortly stipitate, 3–5cm; female zone 1–1.5cm × 4–5mm; ovary oblong, 3-loculed, with 1 staminode at side of base; ovules numerous; placentation axile; stigma disciform; male zone 2–3cm × 3–4mm. Seeds brown, oblong.