A large, showy bolete with a pink to rosy red, dry, fibrous cap and yellow pores, found only with larch, mainly western larch. It belongs to the group once separated as Fuscoboletinus for their dark reddish-brown spore prints, now included in Suillus. It fruits early in the season compared with most boletes.
Reported as edible (Wikipedia), but little has been published on its culinary quality and it is rarely collected for food. Similar larch- and Douglas-fir-associated Suillus species (such as S. lakei) are also edible; no dangerous look-alikes are reported among western larch boletes, but standard bolete caution applies.
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Habitat
Ectomycorrhizal with larch, primarily western larch (Larix occidentalis); also recorded in larch plantations. Fruits in early summer.
Distribution
Western North America: northern Rocky Mountains to the Pacific Northwest, within the range of western larch (described from near Smith Creek, Idaho). Funga Nordica records it in Europe only from Finnish larch plantations.
Characteristics
Cap: up to 25 cm, whitish when very young, becoming pink to rosy red; dry and fibrillose, margin sometimes yellow with buff veil remnants. Pores: yellow, becoming brownish. Stem: up to 10 cm long, yellowish with reddish-brown tones near the base, often hollow, usually with a ring or ring zone. Flesh: yellowish, may stain blue-green. Spore print: reddish brown.
