Garovaglia powellii subsp. obtusata Garovaglia powellii var. powellii Garovaglia powellii var. tahitensis Garovaglia powellii subsp. densifolia Garovaglia powellii var. halaekalae Garovaglia powellii var. planomarginata Garovaglia powellii subsp. powellii Garovaglia powellii var. muelleri Garovaglia powellii var. brevicuspidata Garovaglia powellii var. brevifolia
Pilotrichum powellii Endotrichum powellii
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024