Arisaema erubescens (Wall.) Schott

Tuber depressed globose, 2–7cm in diam. Cataphylls 3, dark green, with whitish striae or spots, to 55cm, acute at apex. Petiole and peduncle green, smooth, unmarked. Leaf solitary, occasionally 2; petiole to 100 × ca. 2cm, proximal ca. 50cm sheathing into pseudostem; leaf blade radiate; leaflets 18–23, sessile, green abaxially, dull green adaxially, narrowly elliptic or narrowly linear, 16–28cm × 2–20mm, base cuneate, apex long acuminate and caudate, with filiform tail 7–10cm; veins raised abaxially, impressed adaxially; lateral veins numerous, obliquely ascending. Peduncle shorter than petioles, to 75cm, free part ca. 9cm. Spathe green, with indistinct whitish stripes or not; tube cylindric, 6–7 × ca. 1.5cm, auriculate and recurved at throat; limb deep green sometimes with purple margin outside, pale green inside, triangular-ovate, 8–12 × 4–8cm, apex acuminate with long purple filiform tail, arching; tail to 35cm, pendulous. Spadix unisexual; female zone conic, ca. 3.5 × 1.5cm; ovary green, obovoid; stigma sessile, spherical, pilose; male zone cylindric, 4–4.5cm × 4–5mm; synandria dark violet; anthers subsessile, 2 or 3, dehiscent by apical pores. Appendix pale green, cylindric or narrowly conic, ca. 7cm × 2–4mm, with some acute neuter flowers at base. Infructescence nodding. Berries red.