Anyway, the flowers on the green roof right now are exclusively purple. And oh so lovely in the morning sunlight. Here are a few photos to tantalize, dazzle and awe:
In this Smooth Penstemon (Penstemon glaber v. alpine; below), a pollen wasp sleeps until the sun hits it and warms it up enough to fly.
Written by Brenna Marsicek, UW Biodiversity Institute