Quercus_phellos_acorn_capules_Nov_MMF
Quercus phellos (willow oak) acorns occur singly or in pairs. The nearly
stalkless acorn is ¼-½" inch long as wide with a shallow, scaly cup
enclosing up to ⅓ of the nut, which turns brown with faint stripes when ripe.
Photo © Mary Free.