As classified in WFO snapshot
June 2023
Warning: older classification
variety
Centaurea cineraria var. sirenum
Lacaita
This variety name was first published in Nuovo Giorn. Bot. Ital. n.s., 22: 242. 1915 , as 'sirenium'
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .