Cryptocampus cooperae
[Salix interior added as a placeholder]
A roughened, irregular, many-celled gall, rising very abruptly from the side of the twig. Woody, knotty. Two or more crowded together, or occurring singly, 5-15 mm long, 5-10 mm wide. On willow, Salix. September.
”- FA Stebbins: (1910) Insect galls of Springfield, Massachusetts, and vicinity©
Reference: https://www.biodiversitylibrary.org/item/71437#page/15/mode/1up