Tournefortia sibirica L.

Herbs perennial, 10-30 cm tall. Rhizomes creeping. Stems single or several, cespitose, erect, or ascending, usually branched, densely strigose or white villous. Leaves sessile or nearly so, lanceolate or oblanceolate to oblong or linear to linear-lanceolate, 1-5 cm × 6-10 mm, densely strigose or villous, base cuneate to rounded, apex acuminate to obtuse. Cymes terminal, scorpioid, 1.5-4 cm wide. Flowers pedicellate. Calyx lobes lanceolate, 3-4 mm, densely strigose. Corolla yellowish white, campanulate, 1-1.3 cm; tube longer than lobes, densely strigose outside; lobes ovate to oblong, recurved. Filaments ca. 0.5 mm, inserted at middle of corolla tube; anthers oblong, 2.5-3 mm, apex mucronate. Ovary slightly 4-cleft, 0.7-0.9 mm, glabrous. Style ca. 0.5 mm, thin; stigma slightly 2-cleft, 0.7-0.8 mm. Fruit elliptic to ovoid, 7-9 mm in diam., scabrous, densely strigose, apex concave; endocarp longitudinally ribbed, divided at maturity into 2 2-seeded pyrenes. Fl. May, fr. Jul. 2n = 26.

Gansu, Hebei, Heilong-jiang, Henan, Gansu, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi [Japan, Kazakhstan, Korea, Mongolia, Russia; SW Asia, SE Europe]

Arid slopes, sandy areas; 0-1900 m.

砂引草（学名：Tournefortia sibirica）是紫草科紫丹属的植物。分布在蒙古、朝鲜、日本以及中国大陆的河南、宁夏、东北、山东、河北、甘肃、陕西等地，生长于海拔4米至1,930米的地区，一般生长在海滨砂地、干旱荒漠或山坡道旁，目前尚未由人工引种栽培。