Asperula oppositifolia subsp. chitralensis Asperula oppositifolia var. albidula Asperula oppositifolia subsp. cabulica Asperula oppositifolia subsp. pseudocynanchica Asperula oppositifolia subsp. oppositifolia Asperula oppositifolia subsp. sikaramensis Asperula oppositifolia subsp. swatensis Asperula oppositifolia subsp. rechingeri Asperula oppositifolia subsp. baltistanica Asperula oppositifolia subsp. grandiflora
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024