Chrysanthemum atkinsonii C.B. Clarke, Comp. Ind. 147. 1876; Hook.f., Fl. Brit. India 3: 315. 1881. Tanacetum atkinsonii (C.B. Clarke) Kitam. in Enum. Fl. Nep. 3: 45. 1982.

Herbs, perennial, strongly aromatic, 15 - 30 cm high; rootstock tuberous, fusiform, fleshy. Stems solitary or rarely 2 from the rootstock, sparsely hairy or woolly upwards. Radical leaves 10 - 15 cm long, pinnatisect, petioled; eauline leaves oblong-lanceolate with brown scarious margins, 5 - 7 cm long, more or less glabrous. Receptacle convex, naked. Ray florets, purple, female, 2 x 0.4 cm, ligule oblong, linear, recurved, obscurely 3-fid. Disc florets hermaphrodite, ca 5 mm long, slender, tubular; limb 5-fid, tipped with brown. Achenes narrowly obconic, angular, ca 3 mm long, strongly 5-ribbed. Pappus absent.

Fl. & Fr. July - Aug.

Distrib. India: E. Himalayas, between 4000-5000 m. Sikkim (Lachham valley).

Bhutan and Tibet.