Delissea scabra (Hillebr.) H. St. John var. variabilis (Rock) H. St. John, Phytologia 63: 88. 1987.
Flora of the Hawaiian Islands --Basionym Type Information Cyanea scabra Hillebr. var. variabilis Rock, Monogr. Stud. Haw. Lobelioid. 255 1919.
Maui: upper ditch trail, Kailua. 18 November 1908. J. F. Rock 10259.
Holotype
[BISH].
=Cyanea longissima