Pinellia ternata (Thunb.) Makino

Perennial with globose tuber 1-2 cm in diam. Leaves 2-5; petiole 15-20 cm long, base sheathing, bulbils present in sheath, at lower or middle portion of petiole as well as at base of leaf blade; leaf blade trifoliolate, sometimes pedate with 5 leaflets; leaflets oblong-elliptic or lanceolate, green above, greenish below, acuminate at apex, cuneate at base, anterior leaflet 3-10 × 1-3 cm; lateral leaflets (3-)4-7.5 × 1.8-2.3 cm; 7-9(-10) primary lateral veins per side, forming a collective vein along margin. Inflorescence with peduncle longer than petioles, 25-35 cm long; peduncle 15-25 cm long; spathe 6-7 cm long, greenish or whitish green, rarely purplish, tube narrowly cylindric, 1.5-2 cm long, limb oblong, green and usually violet at margin, 4-5 × 1.5 cm, obtuse or acute at apex; spadix 9-10 cm long; female zone c. 2 cm long; male zone 5-7 mm long; sterile zone between female and male flowers 3 mm long; appendix 6-7(-8) cm long, green to violet, erect or sigmoid. Female flowers densely arranged; pistil 2.1-2.2 mm long, ovary ovoid, c. 1.8 mm long and 1-1.1 mm in diam., style distinct, attenuate, stigma very small, c. 0.2 mm in diam., not broader than style. Male flowers with thecae elongate, c. 1.2 mm long, opening by a slit. Berries ovoid, yellow green to whitish, with persistent stigma and style, 1-seeded.