Birch Polypore
Piptoporus betulinus
Also known as: Razor Strop Fungus, Birch Bracket
Image placeholder
Add your own image here
Complete Taxonomy
Description
Piptoporus betulinus, the birch polypore, is a bracket fungus that grows exclusively on birch trees. It has been used medicinally for millennia and was found among Ötzi the Iceman's possessions (though likely used for tinder rather than medicine). Historically used to sharpen razors (hence "razor strop fungus"), as well as for various medicinal purposes. It causes brown rot in birch trees.
Physical Characteristics
Distribution
Northern Hemisphere in temperate and boreal regions
Habitat
Grows exclusively on dead and dying birch trees. Causes brown cubical rot. Remains on tree through winter.
Ecological Role
Decomposes birch wood, causing brown rot. Important in birch forest ecosystems. Creates habitat for insects and cavity-nesting birds.
Medicinal & Nutritional Properties
- Traditional use as styptic to stop bleeding
- Antibacterial and antiviral compounds
- Anti-inflammatory properties
- May support immune system
- Traditionally used for intestinal parasites
- Contains triterpenes with potential anti-cancer properties
- Used in traditional medicine across Northern Europe and Asia
Cultural Significance
Found with Ötzi the Iceman (5,300 years ago). Used historically to sharpen razors. Traditional medicine across birch's range. Modern research into medicinal compounds. Easy to identify due to exclusive birch association.
Fascinating Facts
- Grows only on birch trees
- Carried by Ötzi the Iceman 5,300 years ago
- Used historically to sharpen razors
- Pore surface was used as primitive paper
- Can be cut into strips and used as bandages
- Antibacterial properties prevent wound infection
- Dried specimens remain useful for years
- Modern research into anti-tumor compounds