Arisaema jingdongense H.Peng & H.Li

Tuber subglobose, ca. 2.5cm in diam. Cataphylls 3, pale green with purple spots, to 30cm. Leaf solitary; petiole greenish, unmarked, ca. 65cm, proximal 3/4 sheathing into pseudostem; leaf blade radiate; leaflets 7, sessile, pale green abaxially, deep green adaxially, oblong-lanceolate, 7–8 × 1.4–1.6 cm, margin entire, apex acuminate. Peduncle shorter than petioles, ca. 55 cm × 2.5–3mm. Spathe yellowish, without white stripes; tube cylindric, ca. 4cm × 9mm, recurved at throat; limb arching, triangular-oblong, ca. 7.5 × 3cm, apex acuminate with a filiform tail 4–5cm. Spadix unisexual; male zone ca. 3cm; synandria dense; appendix hidden in spathe tube, orange-yellow, clavate, ca. 3.5 cm × 4mm, smooth, apex obtuse. Female spadix unknown.