闽半夏 min ban xia

Stem an obovoid rhizome, to 3.5 × 1.4 cm; nodes more than 5, swollen; internodes very short, 2-3 mm; annual part rooting; cataphylls 2 or 3, ca. 1.5 cm, long acuminate. Leaves 2 or 3; petiole 10-45 cm, bearing bulbils at base; leaf blade broadly sagittate; anterior lobe deltoid-ovate, 7-13.5 × 4.5-10 cm, apex long acuminate; basal lobes divaricate, subtriangular, 4-7 × 2.5-3.5 cm; primary lateral veins 6 or 7(or 8) per side. Inflorescence including peduncle 8-20(-25) cm; peduncle shorter than petioles, to 14(-15) cm. Spathe reddish to yellowish violet, constricted, ca. 5.5 cm; tube ca. 1.5 × 0.1 cm; limb erect, navicular, lanceolate, 3.5-4 × ca. 1.4 cm. Spadix ca. 11 cm; female zone ca. 1.3 cm with 9 or 10 pistils, adnate to spathe; female flowers densely arranged; pistil ca. 1.2 mm; ovary ellipsoid, 0.7-0.8 mm in diam.; style slender, ca. 0.25 × 0.15 mm; stigma disciform, ca. 0.3 mm in diam.; sterile zone between female and male flowers 5-7 mm; male zone ca. 7 × 3 mm; appendix outcurved, ca. 8 cm, slender. Berries ovoid. Seed 1, ovoid, ca. 0.4 mm in diam. Fl. Apr, fr. Sep.

● Forest margins, on rocks or between rocks, moist places. Fujian.

Pinellia fujianensis is similar to P. cordata but differs in having an acute rhizome to 3.5 cm and leaf blade broadly sagittate.