Scott Aker grafts Pinus flexilis scions that he and Kevin and GrayC collected on their trip to Nebraska and South Dakota

It sounds like they got some good stuff. The Pinus flexilis is from a disjunct population (most is much farther west). I haven't had a chance to see the other plants they got but I heard rumors of a 3" shrubby Clematis, a wonderful small Phlox, another miniature perennial, possibly an Aquilegia, and so on and so on. This was just a "scouting trip" to target specimens that they will return and collect seed from. One of their objectives was to find North American plants that could become elements in the palettes from which "green roofs" are created. They seem pretty excited.