1. Found in the Pacific Northwest
Showing 17–32 of 96 results
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Butyriboletus autumniregius (“Red-Capped Butter Bolete”)
Oft-pitted/wrinkled cap is usually bright rose- pink to -red. Yellow, oft-bulbous, finely netted stem stains blue. Grows w/mid-elevation mixed woods (not oak) in autumn.
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Butyriboletus persolidus (“Butter Bolete”)
Short, butter-yellow, oft-bulbous stem may have red-brown stains, esp. lower down. Yellow pores darken w/age & stain blue. Firm texture.
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Butyriboletus primiregius (“Red-Capped Butter Bolete”)
Oft-pitted/wrinkled cap is usually bright rose- pink to -red. Yellow, oft-bulbous, finely netted stem stains blue. Grows w/mountain conifers in spring.
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Butyriboletus querciregius (“Red-Capped Butter Bolete”)
Oft-pitted/wrinkled cap is usually bright rose- pink to -red. Yellow, oft-bulbous, finely netted stem stains blue. Grows w/oak in autumn.
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Caloboletus calopus
Bitter flesh stains quickly blue. Red stem is very netted, browner low, & yellow by the pores. Yellow pores age darker & quickly blue. Likes hemlock.
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Caloboletus conifericola
Both pale, bitter cap flesh & yellow pores (age dingier) instantly blue. Pale yellow stem darkens to deep brown by the base, & has fine netting at least on top.
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Caloboletus frustosus
Bitter flesh DNS. Yellow to green-yellow pores stain blue, then resolve to brown. Yellowish- to gray-brown cap cracks & fissures w/age.
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Caloboletus inedulis
Bitter, whitish-yellow cap flesh stains blue. Yellow pores darken w/age & stain blue. Netted stem is yellow on top, red going down, w/dark-staining base.
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Caloboletus rubripes (“Western Bitter Bolete”)
Pale cap flesh blues instantly, tastes bitter & often smells bad. Yellow pores blue instantly. Buff to olive- or gray-brown cap bruises brown & often cracks & fissures w/age.
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Chalciporus piperatoides
Slow, acrid flavor. Pinkish to yellowish buff-brown flesh, usually blues esp. by the tubes. Yellow pores age to cinnamon & stain blackish blue. Bright yellow mycelium.
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Chalciporus piperatus (“Peppery Bolete”)
Harsh, acrid peppery flavor. Bright yellow mycelium. Yellow cap flesh ages to dingy purple. Pores may stain brown (blue/black bruising = piperatoides).
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Cyanoboletus cyaneitinctus
Quick-bluing stem flesh is yellow high & brown at the base. Yellow pores and stem (gets redder going down) bruise blue but resolve to brown.
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Gastroboletus ruber
Cap-colored, all-but-missing stem. Pale yellow cap flesh quickly blues. Irregular & uneven, reddish pores bruise blue.
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Gastroboletus turbinatus
Short, stubby, yellow-red stem stains blue. Wrinkled & pitted, yellow- to red-brown cap. Yellow, orange, or red pores quickly blue. Often grows in fused clusters.
