luv-2's Identifications

This is Lamium incisum. It is growing sympatrically with Lamium purpureum. See plant on right. I think these are different species because I don't ever see any intermediates. That or they are just heterozygous ellele forms of the same species.

Plant on the left is Lamium hybridum. Collection number 15919 (NY).

Plant on the right is Lamium purpureum. Collection number 15920 (NY).

They are distinct species.

See Taylor, R. 1991. The origin of Lamium hybridum, a case study in the search for the parents of hybrid species. Northwest Science 65: 116–124.