Kirkbride, J. H., Jr. Wiersema, J.H. 2007: (1785) Proposal to conserve the name Zinnia elegans against Z. violacea (Compositae). Taxon 56: 958–959.
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| Kirkbride, J. H., Jr. Wiersema, J.H. 2007: (1785) Proposal to conserve the name Zinnia elegans against Z. violacea (Compositae). Taxon 56: 958–959. |