毛发唐松草 mao fa tang song cao

Thalictrum tenii H. Léveillé.

Plants ca. 120 cm tall, glabrous. Stems branched, sulcate. Basal leaves withered at anthesis. Proximal cauline leaves ca. 30 cm (including petiole); stipules narrow, margin entire or lobed; petiole ca. 8 cm; leaf blade 3-pinnate, ca. 20 cm; leaflet blade ovate, rhombic-ovate, elliptic, or cuneate-obovate, 0.8--2.1 × 0.6--1.6 cm, herbaceous, base cuneate, rounded, or subcordate, margin 3-lobed; lobes entire; veins flat on both surfaces. Inflorescence paniculate, spreading, slender. Pedicel 20--35 mm. Sepals 4, early deciduous, white, obovate or narrowly ovate, 3--4 × 1.2--1.6 mm. Stamens ca. 4.5 mm; filament narrowly linear or filiform; anther narrowly oblong, 1.3--2 mm, apex obtuse. Carpels 2 or 3(--5); style short; stigma persistent, ca. 0.4 mm. Achenes sessile; body ovoid, 3--3.5 mm; veins 8 or 9. Fl. Jun--Jul.

* Scrub; 2000--2500 m. SW Sichuan, W Yunnan.