Matricaria inodora Linnaeus, Fl. Suec., ed. 2, 297. 1755; Chamaemelum inodorum (Linnaeus) Visiani; Chamomilla inodora (Linnaeus) K. Koch; Chrysanthemum inodorum (Linnaeus) Linnaeus; C. maritimum (Linnaeus) Cavanilles var. inodorum (Linnaeus) Becherer; Dibothrospermum agreste Knaf, nom. illeg. superfl.; M. maritima Linnaeus subsp. inodora (Linnaeus) Soó; M. maritima var. inodora (Linnaeus) Soó; Pyrethrum inodorum (Linnaeus) Moench; Rhytidospermum inodorum (Linnaeus) Schultz Bipontinus; Tripleurospermum maritimum (Linnaeus) W. D. J. Koch subsp. inodorum (Linnaeus) Applequist.

Herbs, annual or biennial; stems 30-70 cm tall, erect, striate, glabrous, corymbosely branched in upper 1/2. Middle stem leaves sessile; leaf blade ovate-oblong or oblong, 2-4 × 1-2.5 cm, both surfaces glabrous, 2-pinnatisect; ultimate segments narrowly linear. Distal stem leaves similar, gradually smaller. Capitula several to many, in an apical corymb, 2-3 cm in diam., pedunculate. Involucres hemispheric, 7-10 mm in diam.; phyllaries in 3 or 4 rows, margin narrowly white scarious, outer ones lanceolate, middle and inner ones oblong to oblanceolate. Ray florets white; lamina ca. 1 cm. Disk florets yellow, 5-lobed; lobes each with a resin sac. Achenes brown, triquetrous, ca. 2 mm, wrinkled, with 1 adaxial and 2 lateral thick whitish ribs, abaxially and apically with 2 distinct resin sacs. Corona short, subentire. Fl. and fr. Sep. 2n = 36.

River valleys; ca. 1100 m. Jiangsu, Jilin, Liaoning, N Xinjiang (Tacheng) [Kazakhstan, Russia, Uzbekistan; Europe].