Nectaring on....in open prairie. Too busy worrying about the butterfly and didn't make an id on the plant.
Nectaring on a Pynanthemum tenuifolium in open prairie. Pretty sure this is not the gray hairstreak.
The Lycaenidae are the second-largest family of butterflies, with about 6000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 40% of the known butterfly species.