Cyanea grimesiana Gaudich. var. cylindrocalyx Rock, Bull. Torrey Bot. Club 44: 235. 1917.
Type information:
Holotype [BISH]. J. F. Rock 4629. 16 July 1909. Hawai`i: Waipi`o Valley, [Waima branch]. Isotype(s) [BISH! [2]].
=Cyanea cylindrocalyx