Amorphophallus kachinensis Engl. & Gehrm.

Tuber depressed-globose, 5–30 × 3–25 cm, developing rhizomatous offsets ca 5 × 1 cm. Leaf solitary; petiole 20–120 cm long, smooth, dirty white with dark green to reddish brown spots; leaf blade 30–100 cm diam.; leaflets elongate-elliptic, 6–15 × 2–6 cm, acute-acuminate. Inflorescence solitary, long pedunculate; cataphylls 9–20 cm long; peduncle 24–80 cm × 7–10 mm, ivory-white, greyish or greenish with brown or purple blotches and greenish patches; spathe concave, base shortly convolute, 8–31 × 7–14 cm, exterior green, pale green or greenish brown with green or olive-green spots or purplish red stripes and spots, apex purple, interior pale green in a broad zone along the midrib, then maroon to the margin with narrow, irregularly pale green zones around the main veins; base within bearing scattered, low, punctiform warts; spadix much shorter than spathe, 6.5–18 cm long, stipitate; stipe 2–10 × 4–10 mm; pistillate flower zone slightly obconical or cylindrical, 1.3–5 cm × 6–14 mm, flowers congested, the lower ones often more loosely arranged; ovaries globose or subpyriform, after anthesis (fertilisation?) articulated to the style, dark purple, 1.5 cm × ca 2 mm; style more or less strongly upcurved, slender, dark purple, 1–2 mm long; stigma thin, subglobose or flattened, triradiate or entire, apical or subapical, often transversely expanded beyond the style and sub-bilabiate, 0.4 × 0.7–1 ca mm, surface verrucate, verrucae sometimes elongate and protruding; staminate flower zone obconical, occasionally fusiform, base often constricted, flowers congested, 2–4 × 1.2–3 cm; staminate flowers 3–6-androus; stamens white; appendix stipitate, occasionally sessile, ovate or conical, occasionally nearly globose, apex truncate, rounded or rarely acute, dirty white, 5.5–7 × 2–4 cm, surface often with a few deep, longitudinal grooves or with a few shallow folds, smooth, base constricted and lobed; stipe 3–15 × 8–20 mm Fruit elongate, ripening orange.