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How to Identify Dyer's Polypore

Phaeolus schweinitzii
EDIBLE* Season // Jul-Oct Family // Unknown

Description

Large irregular bracket or rosette 2-12 inches wide with distinctive rusty-brown to orange-brown colors when young, becoming dark brown to black with age. Soft and spongy texture when fresh, developing bright yellow pore surface. Forms brackets, rosettes, or irregular shelves. Causes brown cubical rot. Dark brown context with yellow streaks. Ages to crumbly black.

Specimen Profile

FamilyUnknown
GenusPhaeolus
EdibilityEdible*
Toxicityunknown
SeasonJul-Oct
HabitatParasitic and saprobic at bases and on roots of living and dead conifer trees, particularly pine, spruce, fir, and Douglas-fir. Causes brown cubical butt rot and root rot in conifers. Grows from ground near tree bases, on roots, and on lower trunks. Common in coniferous forests.
RegionRocky Mountains, Pacific Northwest, Northern conifer forests, Great Lakes region, Cascade Range, Circumboreal in northern forests

Habitat & Distribution

Habitat: Parasitic and saprobic at bases and on roots of living and dead conifer trees, particularly pine, spruce, fir, and Douglas-fir. Causes brown cubical butt rot and root rot in conifers. Grows from ground near tree bases, on roots, and on lower trunks. Common in coniferous forests.

Region: Rocky Mountains, Pacific Northwest, Northern conifer forests, Great Lakes region, Cascade Range, Circumboreal in northern forests

Seasonality

Summer through fall, typically July-October. Annual fruiting bodies appear in late summer. Can persist into fall becoming dark and crumbly. Peak in August-September in conifer forests.

Typical months: Jul-Oct

Common Lookalikes

Always verify identification to avoid these similar species. The differentiator is the point — learn the one or two tells that separate them:

Laetiporus conifericola (brighter colors, different texture)

Inonotus tomentosus (similar habitat, different colors)

Onnia tomentosa (similar but zonate pattern)

Other brown conifer polypores (various species)

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Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.