Photo 84516, (c) Barbara Banfield, some rights reserved (CC BY), uploaded by Barbara Banfield

Attribution © Barbara Banfield some rights reserved Uploaded by barbarab Source iNaturalist Associated observations Photos / Sounds What Bitter Wart Lichen (Lepra amara) Observer barbarab Date February 25, 2012 Place Jasper Ridge Biological Preserve, San Mateo County, California, USA (Google, OSM) Date Added February 25, 2012 10:11 PM PST Description Bitter tasting lichen on Coast live oak. Tags lichen, crustose 1 comment 3 IDs Research Grade View Sizes small medium large original