Conyza canadensis (L.) Cronquist in Bull. Torrey Bot. Club 70: 632. 1943
Conyza canadensis in Bull. Torrey Bot. Club 70: 632. 1943
is new combination for Erigeron canadensis, Sp. Pl.: 863. 1753
Conyza canadensis in Bull. Torrey Bot. Club 70: 632. 1943