Photo: Veronicastrum sibiricum 1.

var. sibiricum. Blue flowers against the sun. Linnés trädgård, Uppsala, Sweden. Planted. 2003-06-22.

Veronicastrum sibiricum (L.) Pennell
Bot. syn.: Leptandra sibirica Nutt. ex G. Don, Veronica sibirica L., Veronicastrum virginicum (L.) Farw. var. sibiricum (L.) Boiv.