<nowiki>Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; Ageratum houstonianum ʽArtist Blue’; cultivar of Ageratum houstonianum</nowiki>