In the butterfly meadow the Lupinus spp. (lupines, family Fabaceae) especially were making a remarkable and highly appealing display. Lupines have a number of interesting uses and characteristics which can be easily read about on the wikipedia page.
We did see a number of other pollinators foraging at the meadow, including a large number of Bombus spp. workers diligently collecting from the lupines.
|Bombus sp. on Lupinus sp.|
One thing that I noticed was that the Fletcher Wildlife Garden was absolutely overflowing with Cynanchum rossicum (dog-strangling vine, family Apocynaceae), which is a pretty competitive invasive species native to southern Europe.
I also saw a lot of Symphytum officinale (common comfrey, family Boraginaceae) - no pictures unfortunately. It, like C. rossicum, is an introduced species in North America which now spans most of the continent and is native originally to Europe.
Another invasive species we noticed was Cynoglossum officinale (hound's tongue, family Boraginaceae), which is native to eastern Europe/Asia. It has spread across most of the North American continent now (range maps can be viewed at the USDA species profile).