Arisaema fargesii Buchet

Plants dioecious. Tuber subglobose, 3–5cm in diam., with a few tubercles. Cataphylls 3, brown, inner one ca. 15 cm. Leaf solitary; petiole 20–40cm, base 6–7mm in diam., proximal 1/4 sheathing into pseudostem; leaf blade 3-foliolate; leaflets sessile, membranous; central leaflet rhombic or ovate-oblong to ovate, 12–32 × 9–27cm, base shortly cuneate or combined with lateral leaflets, apex acute; lateral leaflets obliquely elliptic, outer side semiovate, 9–23 × 6–16cm. Peduncle emerging from pseudostem, slender and shorter than petioles, 18–26cm. Spathe purple with whitish longitudinal lines; tube subcylindric, 4–8 × 1.5–2cm, throat margins recurved and auriculate; limb arching or suberect, narrowly triangular, 6–12 × 4–4.5cm, apex long acuminate with a tail 1–4cm. Spadix unisexual; female zone ca. 2 cm; ovary obovoid; stigma subsessile, papillose; male zone cylindric, 2.5–3 cm × 4–5 mm; synandria of 2–4 stamens; thecae ovoid, opening by an apical pore. Appendix robust, suberect or slightly recurved, narrowly conic, long acuminate toward apex, 4.5–9cm, proximal part 7–15mm in diam., base attenuate into a short stipe, apex obtuse, ca. 5 mm in diam.