Clavariadelphus unicolor (Berk. & Ravenel) Corner 1950
From its flattened top, I initially thought this was Clavariadelphus truncatus Donk1933. However, that species grows in coniferous woods at higher elevations. Clavariadelphus unicolor can be found in autumn under deciduous trees, such as hickory and beech. The flesh of all Clavariadelphus species tends to be “spongy”. This is in the Clavariadelphaceae family of the Gomphalles order.