Lobelia costata E. Wimm. , Ann. Naturhist. Mus. Wien 56: 369. 1948.
Type information:
Holotype [BISH]. C.N. Forbes 88.Mo. June 1912. Moloka`i: pali of Waikolu. Isotype(s) [BISH! [2], US!, W! [2]].
=Lobelia dunbariae subsp. paniculata