南重楼 nan chong lou

Daiswa hainanensis (Merrill) Takhtajan subsp. vietnamensis Takhtajan, Brittonia 35: 259. 1983.

Plants 1--1.5 m tall. Rhizome 1.5--3.5 cm thick. Leaves 4--6; petiole 4--10 cm; leaf blade obovate to obovate-oblong, (18--)23--26 × (11--)14--16 cm, base shallowly cordate or subrounded. Peduncle (5--)30--90 cm. Outer tepals 4--7, green, lanceolate to oblong-lanceolate, usually 6--8 × 2--3 cm; inner ones narrowly linear, 5.5--11 × ca. 1 mm, distally slightly widened. Stamens 2(or 3) × as many as outer tepals; filaments 2--5 mm; anthers 0.6--1.6 cm; free portion of connective 1--5 mm, apex acute. Ovary violet, conical-ovoid, 1-loculed. Style short; stigma lobes 6. Fl. Apr--Jul. 2 n = 10*.

Evergreen broad-leaved forests; 1200--1900 m. Guangxi, Yunnan [Vietnam].