Erigeron annuus (L.) Pers., Syn. Pl. 2: 431. 1807. Aster annuus L. Sp. Pl. 875. 1753.

Herbs, 50 - 75 cm (or sometimes more) high, sparsely hirsute. Basal leaves broadly ovate or obovate, dentate or subentire at apex, ca 5.5 x 2.5 cm, sparsely appressed hairy, lower cauline leaves ovate-lanceolate; upper lanceolate. Heads 3-many, in corymbiform panicle. Florets dimorphic. Ligules white or pale blue, twice as long as involucral bracts. Disc florets yellow. Achenes ca 1 mm long, minutely pubescent. Pappus of disc achenes double; outer series of minute scales; inner series of minute hairs; pappus of ray achenes of minute scales only.

Fl. & Fr. June - Aug.

Distrib. India: Himachal Pradesh, Uttar Pradesh, Sikkim and Meghalaya.

Canada, Europe, United States of America and China.

Notes. A very variable apomictic species, cultivated or naturalised in some places.