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