Cytology
The chromosome number of A. millefolium varies, and has been observed as 2n = 18, 27, 36, 45, 54, 63, 72. (Trock, 2006.)
The chromosome number of A. millefolium varies, and has been observed as 2n = 18, 27, 36, 45, 54, 63, 72. (Trock, 2006.)