Tanacetum delavayi Franchet ex W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 8: 345. 1915; Chrysanthemum bulbosum (Handel-Mazzetti) Handel-Mazzetti; C. delavayi (Franchet ex W. W. Smith) Handel-Mazzetti; T. bulbosum Handel-Mazzetti.

Herbs, perennial, 7-25 cm tall; stems erect, solitary, unbranched, somewhat scapelike, densely villous. Leaves in basal rosettes and scattered along stems; basal leaves: petiole 2-6 cm; leaf blade elliptic or narrowly elliptic, 2-7.5 × 1-2.5 cm, 2-pinnatisect, abaxially densely or sparsely villous, adaxially glabrous or nearly so; primary lateral segments 4-11-paired; ultimate segments linear, triangular-lanceolate, or falcate. Stem leaves few, similar to basal leaves, small; uppermost stem leaves pinnatifid. Synflorescence a terminal flat-topped cluster. Capitula 6-11; peduncles ca. 2 mm, villous or pubescent. Involucres campanulate, ca. 5 mm in diam.; phyllaries in 4 rows, rigidly herbaceous, glossy, yellow-white, scarious margin pale brown or white, outer phyllaries lanceolate, ca. 4 mm; middle and inner ones narrowly elliptic, elliptic-oblanceolate, or oblanceolate, 4.5-5 mm. Achenes ca. 2 mm, with a ± distinct apical rim. Fl. and fr. Aug-Oct.

● Alpine meadows; 3300-4000 m. Sichuan, Yunnan.