Home   About Us   FAQ  
Searching   Image Use Plant Books
FloraFinder uses cookies only for correct operation. More info. Okay

Fomitopsis betulina (Bull.) B.K.Cui

Birch polypore

ParentsUnknownGenus is not in the current taxonomy

About plant names...

The birch polypore is native to temperate regions world­wide. Its habitat is birch trees, especially white birch. They are tougher than they look: barbers once sharpened their razors on leathery strips cut from these mushrooms.

Fruits: These bracket fungi extend from the sides of dead or dying birches. (This is kind of amazing, since the bark of white birches is so durable that an entire downed tree rots before the bark degrades.) The fruits are whitish or gray-brown on top and cream-colored below, and kidney-shaped. As they mature, they become flatter and browner on top, and tan beneath. Undersides are dense clusters of pores 1/32-⅛″ (1.5-5 mm) deep. The fruits have a strong pleasant mushroomy odor.

Spores: Spores are cylindrical to ellipsoidal, smooth, and 3-6 µm × 1.3-2 µm. Spore prints are white.

Edibility: Tough and bitter, these are technically edible but not desirable.

Medical: The antibiotic piptamine is obtained from this fun­gus. Piptamine shows antimicrobial activity against some Gram positive bacteria, yeasts (Candida albicans) and fungi. They are a natural astringent, used to help stop bleeding.

Online References:

Michael Kuo's MushroomExpert.com






Fomitopsis betulina (birch polypore)

9/29/2012 · Franconia Falls Trail, Franconia Notch, New Hamp­shire · ≈ 4½ × 7″ (11 × 17 cm)


Fomitopsis betulina description by Thomas H. Kent, last updated 13 Oct 2021.

© FloraFinder.org. All rights reserved.