Cyanea ferox Hillebr. var. laevicalyx Skottsb., Acta Horti Gothob. 15: 487. 1944.
Type information:
Holotype [GB]. L. M. Cranwell 3402. 21 September 1938. Moloka`i: top of Pelekunu Ridge, west side. Isotype(s) [BISH!, S!].
=Cyanea solanacea