Not heterophyllus - is it venustus?

In my continuing saga of mis-ID'd penstemons, here's the offspring of some seed (not from the NARGS exchange) labeled P. heterophyllus. I grew that one before, and am pretty sure this is something different. It resembles the P. venustus I grew more recently, although these new plants are bigger; they were evergreen (or greened up early in spring) in my zone 6 garden, and tended to lay themselves down, rooting along the stem. I like it.