Phyllostegia haplostachya A. Gray var. leptostachya A. Gray, Proc. Amer. Acad. Arts 5: 345. 1862 [Jan].
Type information:
Holotype [US]. U. S. Expl. Exped. s.n.. 1840. Kaua`i: mts., [on barren ridges]. Isotype(s) [GH, K!, NY].
=Haplostachys haplostachya

*Verification: R.K. Shannon, W.L. Wagner; Wagner, W.L. 1999. Novon 9:265-279.