Schemes including Centaurea cyanus

• CONABIO Centaurea cyanus
• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.134974) Centaurea cyanus
• Calflora (1846) Centaurea cyanus
• New England Wild Flower Society's Flora Novae Angliae Centaurea cyanus
• NatureWatch NZ Centaurea cyanus
• GBIF (3089561) Centaurea cyanus