no photo — written note
Fungi
Pale green wrinkled patches spreading over tree bark and fence posts.
Field facts
HabitatTree bark, wood, stone
RangeStatewide
When to lookYear-round
StatusSecure; sensitive to air pollution (Indiana DNR / IUCN Red List)
Look-alikesOther shield lichens
Field note: Abundant lichen cover is a sign of clean local air.
Lesson
Watching responsibly
Never scrape lichens off bark; a patch takes many years to grow.
Your records
No sightings yet. Log one from the Observe tab to earn this stamp.
Log a sighting