Pterocaulon
Elliot
Herbs with stout roots; stems winged. Leaves linear to elliptic or obovate,
margins entire or crenate, tomentose beneath, glabrate above. Inflorescence single, dense or interrupted terminal spike or clustered heads. Heads white or
yellow, discifonn. Involucral bracts multiseriate, acute, pubescent, with
prominent midrib. Ray florets numerous, female; corolla capillary. Disc florets
several, bisexual; corolla tubular, 5-lobed. Achenes dark, plump, conspicuously
ribbed. Pappus uniseriate, of fine bristles, united at base.
Tropical regions of the world; ca 13 species, 1 in India.
Tropical regions of the world; ca 13 species, 1 in India.