Colchicum zahnii Heldr., Herb. Graec. Norm.: [in schedis] No. 1586. 1900 Colchicum zahnii Heldr., Herb. Graec. Norm.: [in schedis] No. 1586. 1900Taxon for this nameColchicum zahnii Heldr., Herb. Graec. Norm.: [in schedis] No. 1586. 1900