NatureServe:
Eastern poison-ivy
NatureServe:
Willow oak
NatureServe:
Blackgum bark
NatureServe:
Blackgum
NatureServe:
Roundleaf greenbrier
NatureServe:
Hornblende tonalite with inclusions
NatureServe:
Laurel Formation bedrock
NatureServe:
White oak
NatureServe:
Chestnut oak
NatureServe:
Northern red oak
NatureServe:
White oak
NatureServe:
Boulder Bridge
NatureServe:
Weeping willow
NatureServe:
Bitternut hickory leaf bud
NatureServe:
Tree-of-heaven
NatureServe:
American basswood
NatureServe:
"Rock Creek Granite"
NatureServe:
Black walnut
NatureServe:
Black walnut
NatureServe:
Canopy gap
NatureServe:
Liverleaf / Hepatica
NatureServe:
Skunk-cabbage
NatureServe:
Rock Creek in spring
NatureServe:
Rock Creek in spring
NatureServe:
Boundary Bridge, Rock Creek
NatureServe:
Floodplain survivor
NatureServe:
Rock Creek in spring
NatureServe:
Rock Creek in spring
NatureServe:
Streamside at Rock Creek
NatureServe:
Tuliptree in spring
