This is a picture of Hamamelistes spinosus on a birch along Gun Road at the Avalon Area of Patapsco Valley State Park in Howard County, Maryland.
This is a picture of Aculus leionotus on a birch leaf along Gun Road at the Avalon Area of Patapsco Valley State Park in Howard County, Maryland.
On Acer negundo (208847997).
On Acer negundo (208847997).
On Acer negundo (208847997).
On Maple (208848009).
Not sure whether V. quadripedes or V. aceriscrumena (or neither).
Tiny thing; just getting started? Couldn't find any more.
On Prunus serotina (208848003)
C reticulata
This is a picture of Ecdytolopha insiticiana on a Black Locust at Sandy Point State Park near Annapolis, Maryland.
This is a picture of Hamamelistes spinosus on a beech tree at Sandy Point State Park near Annapolis, Maryland.
Quercus margaretiae (Quercus margaretiae, Quercus margaretta, Quercus margarettae, Sand Post Oak)
Maybe
Q. alba. Multiple galls. Sending to Forbes lab
There were several of these on this particular tree