Dubautia laxa Hook. & Arn. var. greenwelliae O. Deg. & Sherff, in Sherff, Occas. Pap. Bernice P. Bishop Mus. 20(1): 18. 1949.
Type information:
Holotype [F]. O. Degener 19384. 6 December 1948. O`ahu: near summit of Wiliwilinui Ridge, Wailupe.610m. Isotype(s) [F 2 sheets, NY [photos B!, BISH! 3 sheets, F 2 sheets]].

Note: (coll. A. Greenwell). Holotype: photos B! BISH! 4 sheets, F!, NY!

=Dubautia laxa subsp. laxa
Note: (coll. A. Greenwell). Holotype: photos B! BISH! 4 sheets, F!, NY!

*Verification: None.