Senecio longifolius L., Sp. Pl., ed. 2: 1222. 1763
Senecio longifolius, Sp. Pl., ed. 2: 1222. 1763
is earlier homonym of Senecio longifolius in Sonklar & al., Anleit. Wiss. Beob. Alpenreisen 2: 247. 1882
Senecio longifolius, Sp. Pl., ed. 2: 1222. 1763