Tanacetum herderi Regel & Schmalhausen, Trudy Imp. S.-Peterburgsk. Bot. Sada 5: 169. 1878; Hippolytia leucophylla (Regel) Poljakov; T. leucophyllum Regel.

Herbs, perennial, 10-30 cm tall; stems erect or ascending, with short flowering branches toward apex, sparsely pubescent, or glabrescent. Leaves in basal rosettes and scattered along stems; basal leaves and leaves on vegetative branches: petiole 3-5 cm; leaf blade narrowly elliptic or ovate, 2-4 × 1-1.5 cm, 2-pinnatisect, both surfaces gray-white, pubescent; primary lateral segments 2-4-paired; ultimate segments narrowly elliptic. Stem leaves similar to basal leaves, shortly petiolate. Synflorescence a terminal dense or lax flat-topped cyme. Capitula 3-10. Involucre broadly cuneate or hemispheric, ca. 1 cm in diam.; phyllaries in 3 rows, abaxially sparsely pubescent, scarious margin broad, dark brown, outer phyllaries lanceolate, ca. 2 mm, middle and inner ones narrowly elliptic, 5-6 mm. Florets yellow, ca. 3.5 mm. Fl. Sep.

Mountain regions, meadows; ca. 2500 m. Xinjiang (Xinyuan) [Kazakhstan].