Distribution: Primarily west of the Cascade Crest, but some extension east of the crest. Coniferous forests from sea level to higher elevations. Maritime Pacific Northwest, from Vancouver Island to Oregon. May also extend to eastern slopes of the Cascades.
Habitat: Mixed coniferous forests.
Substrate: Soil.
Conservation Status: Not of concern
A cracked-cap bolete with yellow flesh, large yellow pores, stem yellow at top and red at bottom, sometimes streaked. Cap stains greenish-black or blue; flesh and tubes stain blue; pores stain dark green or dark blue-green, then slowly turn brown; stem stains dark green, dark blue-green, or dark teal blue, then turns greenish black.
PNW Herbaria: Specimen records of Xerocomellus rainisiae in the Consortium of Pacific Northwest Herbaria database
CalPhotos: Xerocomellus rainisiae photos