Place of publication:
Prodr. 5:464. 1836 Oct "conyza"
Comment:
Aster conyzae Griess. and I. conyzae DC. ("conyza") are homotypic, being independently proposed as nom. nov. for Conyza squarrosa L., so Candolle's name is treated as a new combination, and his spelling as a correctible orthographic variant of Griesselich's