Butter Bolete

The yellow, reticulate stipe and yellow pores of the mushroom in the picture explain the common name of Boletus appendiculatus, the Butter Bolete.


Both the stipe and pores immediately stain blue when scratched, another good field identification clue. Boletus regius, the red butter bolete, another similar Western species, can be distinguished by a red cap.

The Butter Bolete is considered a choice, edible bolete, but the usual cautions apply. When in doubt with a mushroom identification, it is always better to be safe than sorry.