Salmaki, Yasaman, Mika Bendiksby, and Günther Heubl. 2015. “Molecular Phylogeny Confirms the Placement of Enigmatic Stachys persepolitana in Lamium (Lamiaceae; Subfam. Lamioideae)”. Phytotaxa 192 (4). Auckland, New Zealand:254–266. https://doi.org/10.11646/phytotaxa.192.4.3.