How to identify Red Reishi

To correctly identify Red Reishi (Ganoderma lucidum), check each of these features in order. Misidentification is the most common cause of mushroom poisoning, so cross-reference multiple sources.

Step-by-step identification

1. 1

   Cap

   Shape, color, surface texture, and diameter.

   Kidney-shaped, reddish-brown, glossy surface, often with concentric zones.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   N/A (Polypore - has pores instead of gills)

3. 3

   Stem

   Length, shape, surface, and any ring.

   May be present or absent, typically short and stout if present.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   Tough, corky, and fibrous.

5. 5

   Fruiting body

   Overall growth pattern.

   Typically grows on wood, often with a stem.

6. 6

   Habitat

   Where it grows and on what substrate.

   Hardwood trees, decaying logs, or stumps.

Key Facts

Cap surfaces

Glossy, smooth, often with concentric zones

Growth Form

Lateral or sessile

Spore Print

Brown

Body color

Reddish-brown

Odor

Mild, earthy

Flesh bruises

Does not typically bruise

Height

Variable, up to 20 cm

Cap Diameter

5-30 cm

Fruit body characteristics

• Gill attachment: N/A (Polypore)
• Stem shape: Cylindrical or absent
• Stem surface: Smooth or glossy
• Ring: Absent
• Stem cross-section: Solid

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