Bear's head tooth vs lion's mane: how to tell them apart

Quick answer

Only bear's head tooth is branched. Lion's mane is a single rounded mass with long spines hanging from it; bear's head tooth hangs its spines in tufts from the ends of its branches. Both are white, turn yellowish with age and grow on hardwood.

Side by side

The tell for each

A white bear's head tooth with branches hung with long, icicle-like spines on a mossy log
Edible
Bear's Head ToothHericium americanum

The tellWhite, branched mass with long spines hanging in tufts from the branch tips.

A creamy white lion's mane with hanging spines growing on the side of a tree trunk
Edible
Lion's ManeHericium erinaceus

The tellA single white, unbranched clump of long hanging spines on hardwood.

How they differ

Differences between the bear's head tooth and the lion's mane
FeatureBear's Head ToothLion's Mane
StructureBear's Head ToothBranched, with spines in tufts at and along the branch tips.Lion's ManeA single unbranched clump.
SpinesBear's Head Tooth0.5 to 1.5 inches (1 to 4 cm) long, in tufts.Lion's Mane0.5 to 2 inches (1 to 5 cm) long, all hanging from one central mass.
SizeBear's Head Tooth4 to 12 inches (10 to 30 cm) across.Lion's Mane3 to 10 inches (8 to 25 cm) across.
Where on the treeBear's Head ToothDead hardwood logs and stumps, and wounds on living trees.Lion's ManeOften high on trunks of living trees at wounds, or on recently fallen logs.
RangeBear's Head ToothEastern North America, east of the Great Plains.Lion's ManeWidespread, including eastern hardwood forests and oak woods on the West Coast.

FAQ

Common questions

Is bear's head tooth the same as lion's mane?

No. Bear's head tooth is Hericium americanum and lion's mane is Hericium erinaceus. Both are in the same genus, but bear's head is branched and lion's mane is not.

Where do bear's head tooth and lion's mane grow?

Both grow on hardwood. Bear's head tooth grows on dead logs and stumps and on wounds of living trees, especially beech, oak and maple, east of the Great Plains. Lion's mane grows at wounds on living trees or on recently fallen logs across much of North America.

Sources

Where these facts come from

  1. Hericium americanum

    MushroomExpert.com

  2. Hericium erinaceus

    MushroomExpert.com

Keep checking

Read both pages in full

This page states what field guides record. It is not advice to eat, taste or handle anything, and a photo cannot settle edibility. If someone has eaten a wild mushroom that may be toxic, call poison control (1-800-222-1222 in the US) right away, before symptoms start: the deadliest species act hours later.

Waitlist

Hear when it opens

We will send one email when Mushrooms.id opens, and nothing else.

Email us to join

This opens your email app with the request written for you. Send it and we add you to the list. No email app? Write to hello@mushrooms.id with the subject “Add me to the Mushrooms.id waitlist”.