Estimated value
$8–20/lb fresh
Dried $30–70/lb
Whole young clusters. Cultivated maitake undercuts wild unless the cluster is huge and clean.
medicinal · choice
Grifola frondosa
Also called Sheep's head

$8–20/lb fresh
Dried $30–70/lb
Whole young clusters. Cultivated maitake undercuts wild unless the cluster is huge and clean.
Gray-brown feathery rosette at the base of oak. Many overlapping petal-like caps with white pores beneath. Can weigh several kilos.
Base of living or dying oaks.
Circle mature oaks in early fall. Look at the root flare, not the canopy. Same tree fruits for years.
Cut the core above dirt. Brush, do not soak. Check for insects in the base.
Beta-glucans studied for immune support. Sold as D-fraction supplements. Food use is the conservative path; medical claims need a clinician.
None.
Legal food and supplement.
Berkeley's polypore
Tougher, paler, huge. Edible only when very young.
Black-staining polypore
Stains dark. Edible young, different texture.
Tick every required mark in the woods. 0/3 required. This still is not laboratory certainty.
Do not eat or sell this specimen. Missing required marks.