武夷唐松草 wu yi tang song cao

Plants 17--30 cm tall, glabrous. Stems simple or distally branched. Basal leaves 1--3; petiole 8--12 cm; leaf blade 3-ternate, 4.5--9 cm; petiolule 1.5--2 cm; leaflet blade broadly ovate or broadly rhombic, 1.8--2.5 × 1.5--1.8 cm, papery or thinly leathery, base obtuse, apex obtuse, 3-lobed; lobes slightly toothed; veins raised on both surfaces or flat adaxially. Inflorescence terminal or axillary, monochasial, 2--4-flowered. Pedicel 1.2--3 mm. Sepals 4, early deciduous, pale pinkish red, elliptic or narrowly so, 3--4 × 1.5--2 mm, apex obtuse. Stamens 12--16; filament base filiform, to 2 × as broad as anther; anther oblong, ca. 0.8 mm, apex obtuse or mucronate. Carpels (4--)6 or 7; stigma sessile. Achene body fusiform, 3--4 mm; veins ca. 6. Fl. Apr.

* About 2000 m. N Fujian (Chong’an Xian: Wuyi Shan), EC Jiangxi (Nanfeng Xian).

This species is similar to Thalictrum reticulatum, but differs in having inflorescence monochasial, cymose, and 2-flowered or helicoid and 4-flowered.