Aster laurentianus Aster ciliatus subsp. laurentianus Brachyactis ciliata subsp. laurentiana Aster laurentianus var. magdalenensis Aster laurentianus var. laurentianus Brachyactis laurentiana Aster laurentianus var. contiguus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024