Summary description from Wikipedia:

Butyriboletus primiregius in languages:

English

Spring Butter Bolete

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Parent Taxon

• Butyriboletus

Sibling Taxa

• Butyriboletus abieticola
• Butyriboletus appendiculatus
• Butyriboletus autumniregius
• Butyriboletus brunneus
• Butyriboletus fechtneri
• Butyriboletus fuscoroseus
• Butyriboletus loyo
• Butyriboletus peckii
• Butyriboletus persolidus
• Butyriboletus primiregius
• Butyriboletus pseudoregius
• Butyriboletus pseudoroseoflavus
• Butyriboletus pulchriceps
• Butyriboletus querciregius
• Butyriboletus regius
• Butyriboletus roseoflavus
• Butyriboletus roseogriseus
• Butyriboletus roseopurpureus
• Butyriboletus sanicibus
• Butyriboletus subappendiculatus
• Butyriboletus subsplendidus
• Butyriboletus taughannockensis
• Butyriboletus yicibus

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