Smyrnium rotundifolium Mill., Gard. Dict., ed. 8: no. 2. 1768 Smyrnium rotundifolium Mill., Gard. Dict., ed. 8: no. 2. 1768is basionym for Smyrnium perfoliatum subsp. rotundifolium (Mill.) Bonnier & Layens, Tabl. Syn. Pl. Vasc. France: 135. 1894Taxon for this nameSmyrnium rotundifolium Mill.