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Smooth rock tripe

Umbilicaria mammulata


A very large foliose lichen that grows on boulders. Upper surface is pink-brown; lower surface turns black with maturity.


Boulders, rock walls in forests and near water.


I've been told that this is edible, especially when boiled.

No species ID suggestions

Pembroke, Virginia, USA

Lat: 37.32, Long: -80.64

Spotted on Apr 19, 2014
Submitted on Apr 28, 2014

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Rock tripe Navel Lichen Emery Rock Tripe Smooth Rock Tripe

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