Quercus gambelii, subturbinella [turbinella]
"Root" galls
Cluster of fleshy galls in spring, 20-30 mm in dia. Fig 6. Colorado.
- LH Weld: (1960) Cynipid galls of the southwest©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018354765&view=1up&seq=21