Chrysanthemum arcticum L. | | a | | Chrysanthemum arcticumL. | |
Chrysanthemum arcticum L. subsp. arcticum | | a | i | Chrysanthemum arcticumL. subsp. arcticum | |
Chrysanthemum arcticum L. subsp. polare Hultén | | a | i | Chrysanthemum arcticumL. subsp. polare Hultén | |
Chrysanthemum arcticum L. var. arcticum | Chrysanthemum arcticum L. subsp. arcticum | | i | Chrysanthemum arcticumL. var.arcticum | Chrysanthemum arcticumL. subsp. arcticum |