Found on sticks and decaying logs, its distinguishing features are its yellowish to orange scaly cap, and the hexagonal or diamond-shaped pores.

The cap surface is dry, covered with silk-like fibrils, and is an orange-yellow or reddish-orange color, which weathers to cream to white.

[11] Neofavolus alveolaris is found growing singly or grouped together on branches and twigs of hardwoods, commonly on shagbark hickory in the spring and early summer.

[12] It has been reported growing on the dead hardwoods of genera Acer, Castanea, Cornus, Corylus, Crataegus, Erica, Fagus, Fraxinus, Juglans, Magnolia, Morus, Populus, Pyrus, Robinia, Quercus, Syringa, Tilia, and Ulmus.

[13] This species is widely distributed in North America,[5][12] and has also been collected in Australia,[14] China,[15] and Europe (Czechoslovakia,[16] Italy[17] and Portugal[18]).

Named alveolarin, it inhibits the growth of the species Botrytis cinerea, Fusarium oxysporum, Mycosphaerella arachidicola, and Physalospora piricola.