华北百蕊草 hua bei bai rui cao

Herbs perennial; rhizomes rather slender, short. Stems erect or ascending, usually many branched, rather robust, 12-20 cm, glossy, ridged and furrowed. Leaves sessile, narrowly linear, (15-)20-25(-30) × ca. 0.6 mm, inconspicuously 1-veined, margin entire. Inflorescences racemelike, often branched, few flowered; bracts linear, 8-15 × ca. 0.6 mm, 1-veined; pedicel slender, 5-10 mm, upper ones shorter, patent, ridged, smooth; bracteoles 2, 4-5 mm. Perianth 4(or 5)-merous, interior white, long funnelform, 5-8 mm, tube tubular, ca. 3 mm, divided to middle, lobes lanceolate-oblong, ca. 1 mm, incurved. Ovary ellipsoid, ca. 1 mm in diam., sessile. Style often exserted. Nutlet ellipsoid, ca. 3 mm, with raised reticulate veins; persistent perianth hypocrateriform, patent apically, 4-5 mm. Fl. and fr. Jun-Jul.

* Grasslands; 300-2500 m. Hebei, Shandong, Shanxi.