Tim Fitzharris / Vervain (Verbena officinalis) at Franklin Mountains State Park, Chihuahuan Desert, Texas

Rolf Nussbaumer / Checkered White butterfly (Pontia protodice) adult feeding on Texas Vervain (Verbena halei). Laredo, Webb County, Texas, USA, April.

David Welling / Fiery Skipper (Hylephila phyleus) feeding on a Dakota Vervain (Glandularia bipinnatifida). Travis County, Texas, USA, April.

Rolf Nussbaumer / Texas vervain (Verbena halei) flowering, with petals covered in dew, Coastal Bend, Texas Coast, USA

Larry Michael / Silver spotted skipper on Hoary vervain (Verbena stricta) USA