Callirhytis infuscata
Quercus catesbaei [laevis]
Leaf galls, detachable
Woolly midrib cluster on under side in fall dropping in late Nov. When wool weathers away each element is white and flat-topped.
Quercus cinerea [incana], laurifolia, marilandica, myrtifolia, phellos
Leaf galls, detachable
Globular, fleshy, densely covered with yellow wool, single or cluster on midrib on upper surface in fall, dropping when mature, then the wool coming away clean.
- LH Weld: (1959) Cynipid galls of the eastern United States©