species 275 observations
Rusty Firedot Lichen
Blastenia ferruginea
Field notes
Blastenia ferruginea is a species of corticolous (bark-dwelling), crustose lichen in the family Teloschistaceae. It has a cosmopolitan distribution.
Read more on WikipediaRange
Greener is more native, amber more introduced; paler is less certain. How this was decided