Arisaema zhui H.Li

Plants deciduous. Tuber subglobose, cream-colored, 3–4 × 5–7cm. Cataphyll pink, with brown mottling, 1–20cm. Leaf solitary; petiole red-brown or olive-green with transverse paler mottling, 60–80cm, proximal 35–45cm forming pseudostem, ca. 1.5cm in diam. at base; leaf blade radiate; leaflets 12–14, sessile to subsessile, glaucous with slightly prominent carmine or green veins abaxially, shiny green adaxially, elliptic, 20–30 × 3–4cm, base cuneate, margin flat or undulate, green or red, apex acuminate, often prolonged into a carmine thread to 9cm; veins slightly impressed adaxially. Peduncle green with paler mottling, becoming red-violet toward inflorescence, shorter than petioles, 35–60cm × 4–5mm. Spathe tube outside pruinose, dark purple or pale olive-green with thin white stripes, inside pale carmine with white stripes, funnelform, 7–8cm, 1.2–1.5cm in diam. at base, 3–4.5cm in diam. apically; throat margins straight, dark carmine; limb horizontal, outside dark purple, with very faint paler stripes, inside dark purple, pale green at base, with broad white stripes anastomosing in a central white spot at throat level, ovate, 9–10 × 5–6cm, nearly as long as tube, apex acuminate, prolonged into a purple, filamentous tail to 20cm. Spadix unisexual; female zone of same shape and size as male zone; ovaries dense, pale green, bottle-shaped, 1.5–2mm in diam.; stigma sessile, penicillate, surrounded by black annulus; male zone subcylindric, 2–3 × ca. 0.6cm; synandria loosely arranged, consisting of 2–4 anthers; anthers lilac, subsessile or borne on a white-green short stalk; thecae dehiscent by an oblong pore; pollen white. Appendix sessile, slightly exserted from spathe tube, erect, cylindric, to 7cm × 5mm, middle part green sometimes with carmine stripes above neuter flowers, apex white-green, rounded, even or spongy; neuter flowers upcurved, green, 3–4mm, numerous in female spadix only. Infructescence cylindric, ca. 5 × 1.5–2.5cm, borne on a nodding peduncle. Berries dense, red-orange with black stigmatic remains, ca. 7 × 3 mm, 1- or 2-seeded. Seeds globose, ca. 2mm; testa cream-colored.