Acaena exigua A. Gray var. glaberrima Bitter, Biblioth. Bot. 74: 43 1910.
Maui, West Maui, summit of Mt. Eeka [Pu`ukukui]. Hillebrand s.n..
Holotype
[B]. Isotype(s)
[BISH!].
Acaena exigua A. Gray var. glabriuscula Bitter, Biblioth. Bot. 74: 44 1910.
Kaua`i, plateau of Haliakala [Wai`ale`ale]. Wawra 2168.
Holotype
[W].
Acaena exigua A. Gray var. subtusstrigulosa Bitter, Biblioth. Bot. 74: 43 1910.
Kaua`i, plateau of Haliakala [Wai`ale`ale]. Wawra 2168.
Holotype
[W].