Neoregelia carolinae forma tricolor originated in cultivation and is now the cultivar ‘Caroline Tricolor’
Neoregelia carolinae (Beer) L. B. Smith, Contr. Gray Herb. 124: 9. 1939.
Neoregelia carolinae (Beer) L. B. Smith forma tricolor (M. B. Foster) M. B. Foster ex L. B. Smith, Phytologia 15: 186. 1967. Dec 2015 World Checklist does not acknowledge this and now treated as cultivar