Aureoboletus flaviporus

Aureoboletus flaviporus, commonly known as the viscid bolete, is a species of bolete fungus found in western North America, where it grows in ectomycorrhizal association with coast live oak, madrone, manzanita, and possibly with tanoak. In California, this mushroom appears during the rainy season in locations south of Mendocino County. This mushroom is "fairly common" but does not appear in large groupings, only as one-offs or small clusters in scattered locations.

The cap is sticky-slimy, the pores are neon yellow, and this flesh of this bolete does not stain blue when it is cut or torn. The taste is said to be "acidic-lemony," and the overall edibility "mediocre" because of a deficient combination of flavor and texture. From 1905 until 2010, the binomial name of this fungus was Boletus flaviporus.