Douglas Fir Pseudotsuga menziesii

Douglas fir is a dominant conifer of low- and middle-elevation forests in western Washington and Oregon, and one of North America’s major timber trees (USFS Fire Effects Information System). Despite its name, it is not a true fir — Pseudotsuga is its own genus, separate from Abies. For mushroom hunters, it is one of the two main host trees of the Pacific golden chanterelle, along with western hemlock (Siegel & Schwarz, Mushrooms of Cascadia).

Mature trees develop thick, corky, furrowed bark that helps them survive moderate fires. The needles are flat, soft, and arranged spirally around the twig. The cones are a good field mark: three-pointed bracts extend beyond the scales.

Douglas fir grows from near sea level into the mid elevations of the mountains, and is the common tree of second-growth forests in western Oregon and Washington. It also extends into drier forests east of the Cascade crest. Younger to middle-aged stands, including lower-elevation plantations, are where Pacific golden chanterelles are most often found (Siegel & Schwarz).

Douglas fir forms ectomycorrhizal relationships with many fungi. Edibles that Siegel & Schwarz tie to it include the Pacific golden chanterelle, the white chanterelle (which favors mature stands), matsutake in drier forest, the fib king, and cauliflower mushroom at the base of conifers. The cards below cover all five, plus the candy cap.

Associated Mushrooms

Six edible species that foragers look for in Douglas fir forests.

Pacific Golden Chanterelle

Cantharellus formosus

Douglas fir and western hemlock are its main host forests, mostly west of the Cascade crest. Fruiting starts about two weeks after fall rains return and lasts until freezing weather.

Mycorrhizal Choice Edible

White Chanterelle

Cantharellus subalbidus

Creamy white throughout; the flesh bruises yellow, then orange-brown. It favors mature Douglas fir stands and is more common in eastern Cascade forests (Siegel & Schwarz). Late summer through fall.

Mycorrhizal Choice Edible

Matsutake

Tricholoma murrillianum

Found in drier Douglas fir forest, along with true fir and hemlock, and in sandy soil under coastal shore pine. Fruits in fall, often buried in duff.

Mycorrhizal Choice Edible

Fib King

Boletus fibrillosus

A porcini relative with a dark brown, finely fibrous cap and a netted stem. Its main hosts are Douglas fir and true firs. Found across the region, though seldom in quantity. Late summer into early winter.

Mycorrhizal Choice Edible

Cauliflower Mushroom

Sparassis radicata

Fruits near the base of conifer trunks and stumps, most often with Douglas fir and spruce. Large and ruffled, like a mass of egg noodles. Cook it well; some people react badly to it (Siegel & Schwarz).

Parasitic Choice Edible

Candy Cap

Lactarius rubidus

Our local candy cap (D. Miller, Danny’s DNA Discoveries). It smells of maple syrup when dried, but several look-alikes do not (D. Miller). Most often with tanoak toward the southwest; in western Washington and Oregon it turns up with Douglas fir in low interior valleys (Siegel & Schwarz). Fruits late fall into winter.

Mycorrhizal Choice Edible

Photos: Douglas Fir — Quillipede (CC0).

Sources: Mushrooms of Cascadia (Siegel & Schwarz, 2024); MycoMatch (© Ian Gibson), a compilation of published descriptions through which most other field-guide authors named here are quoted; Danny’s DNA Discoveries and the PNW Pictorial Key (© Danny Miller).