阴地唐松草 yin di tang song cao

Thalictrum gueguenii B. Boivin

Plants 15--50 cm tall, glabrous. Stems branched, slender, sometimes smooth. Basal leaf 1; petiole ca. 12 cm; leaf blade 2- or 3-ternate, ca. 30 cm; leaflet blade broadly obovate, orbicular-rhombic, or orbicular, 1--2.5 × 1--2.5 cm, thinly herbaceous, base rounded to subcordate, margin 3-lobed; lobes 1- or 2-crenate; veins flat or raised abaxially. Cauline leaves small; leaf blade 1- or 2-ternate. Inflorescence flat topped, few flowered. Pedicel slender, 10--25 mm. Sepals 4, early deciduous, white, ovate, ca. 2 mm. Stamens many; filament base filiform, apex narrowly oblanceolate, broader than anther; anther yellow, elliptic or oblong, 0.5--0.8 mm. Carpels 6--9; stigma discoid. Achene stipe 1--2 mm; body fusiform, compressed, ca. 3 × 0.6--0.8 mm; veins ca. 8, weak. Fl. Mar--Apr.

* Montane forests, valley sides, damp rocky ledges; 1000--1300 m. Guangdong, Guangxi, SE Hunan, S Jiangxi.