Catalogue › FlowersSnakeroot (Ageratina)Every species of the genus Ageratina in the catalogue.Sticky snakeroot (Ageratina adenophora)Hammock snakeroot (Ageratina jucunda)Lemmon's snakeroot (Ageratina lemmonii)Lucy Braun's snakeroot (Ageratina luciae)Western snakeroot (Ageratina occidentalis)Rothrock's snakeroot (Ageratina rothrockii)Lesser snakeroot (Ageratina aromatica)