1. Ranunculaceae (毛茛科)
2. Thalictrum (唐松草属)
3. Thalictrum simplex (箭头唐松草)

学名(拉丁名)	Thalictrum simplex
中文名	箭头唐松草
命名人	L.
中文科名	毛茛科
拉丁属名	Thalictrum
类型	species
拉丁科名	Ranunculaceae
中文属名	唐松草属

1	Plants glandular pubescent (57)	d var. glandulosum
1 +	Plants glabrous.	(2)
2 (1)	Pedicel 4--7 mm.	(3)
2 (1) +	Pedicel 1--4(--5) mm (57)	c var. brevipes
3 (2)	Proximal cauline leaflet blade orbicular-rhombic, broadly rhombic-ovate, or obovate (57)	a var. simplex
3 (2) +	Proximal cauline leaflet blade cuneate or narrowly so (57)	b var. affine

Plants 50--100 cm tall, glabrous or glandular pubescent. Stems simple or proximally branched, smooth. Cauline leaves erect, proximal ones ca. 20 cm including petiole; leaf blade 2-pinnate; leaflet blade cuneate, narrowly so, orbicular-rhombic, broadly rhombic-ovate, or obovate, 2--4 × 1.4--4 cm, base narrowly cuneate to rounded, margin 3-lobed; lobes crenate, apex rounded, obtuse, or acute; veins raised abaxially. Distal cauline leaf blade small; leaflet blade cuneate-obovate, obovate, or orbicular, base obtuse or cuneate, apex acute. Inflorescence paniculate, 9--30 cm. Pedicel 1--7 mm. Sepals 4, early deciduous, narrowly elliptic, ca. 2.2 mm. Stamens ca. 15; filament filiform; anther narrowly oblong, ca. 2 mm, apex mucronate. Carpels 3--6; stigma broadly triangular. Achenes sessile; body narrowly ovoid or narrowly ellipsoid, ca. 2 mm; veins ca. 8. Fl. Jul.

Slopes, grasslands, wet meadows, rocky ledges; 900--2400 m. Gansu, Hebei, Heilongjiang, Hubei, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan Xinjiang [Japan, Korea, Mongolia, Russia (Siberia); C and SW Asia, Europe].

This species is used medicinally.

Thalictrum simplex
Family Name:	Ranunculaceae	Genera name:	Thalictrum
Species name:	simplex	Genera status:
NLR:		Comments: