Chalarothyrsus amplexicaulis is a species of flowering plant belonging to the family Acanthaceae. It is a subshrub native to central and southwestern Mexico.[1] It is the sole species in genus Chalarothyrsus.[2]
The genus and species were described by German botanist and mycologist Gustav Lindau and was published in Bulletin de l'Herbier Boissier, sér. 2, 4: 327 in 1904. [3]
Species: