<nowiki>Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; Ageratum houstonianum ʽCloud Nine Blue’; cultivar of Ageratum houstonianum</nowiki>