Typhonium roxburghii Schott

Underground part a short, tuberous rhizome, subglobose or globose. Petiole 10–35cm; leaf blade yellowish green abaxially, dark green adaxially, reniform-hastate, triangular in outline, shallowly or deeply 3-lobed; terminal lobe ovate, (5–)9–17 × 4–14cm, acuminate; lateral lobes spreading, obliquely ovate or narrowly ovate. Inflorescence appearing after leaves; peduncle creamy red with dark purple dots, 2–9cm. Spathe outside whitish or pale green with purple striae, inside purple, base ovoid, 2–3.5 × ca. 1.5cm; limb outside purplish mixed with dirty green flush or striae, or purple all over, inside deep rich purple, ovate-lanceolate, abruptly tapering from below middle, usually twisted at tip, 13–15 × ca. 5cm. Spadix subequaling spathe; female zone 4–5.5mm; ovary white or yellowish, ovoid; stigma purple, 1-loculed, 1-ovuled; sterile zone 1.5–2.2cm, proximal 5–7mm densely covered with staminodes, rest naked; staminodes downcurved, yellow or pale yellow, sub-cylindric, 8–9mm, acute; male zone 7–12mm; male flowers consisting of 2 or 3 stamens, yellow; anthers sessile, opening with apical pore; appendix dark purple, narrowly conic, 12–15cm, 3–4mm in diam. at base, base truncate with a pale red stipe ca. 2mm. Berries pale green at first, white when mature, ovoid or ellipsoid, 1-seeded.