Argemone glauca (Nutt. ex Prain) Pope var. inermis O. Deg. & I. Deg., Fl. Hawaiiensis, fam. 140. Argemone glauca, part 2. 1958. Type information: Holotype [BISH]. C.N. Forbes s.n.. 10-10 February-March 1913. Kaho`alawe: s.l..