Common Orange Lichen
- Peak month
- April
- Records since 2000
- 16,366
- Scientific name
- Xanthoria parietina
Hammered Shield Lichen
- Peak month
- April
- Records since 2000
- 10,481
- Scientific name
- Parmelia sulcata
Oakmoss
- Peak month
- March
- Records since 2000
- 7,937
- Scientific name
- Evernia prunastri
Brown Rim-lichen
- Peak month
- May
- Records since 2000
- 7,917
- Scientific name
- Lecanora chlarotera
Fringed Rosette Lichen
- Peak month
- April
- Records since 2000
- 7,846
- Scientific name
- Physcia tenella
Common Dust Lichen
- Peak month
- May
- Records since 2000
- 7,408
- Scientific name
- Lepraria incana
Hooded Rosette Lichen
- Peak month
- March
- Records since 2000
- 7,205
- Scientific name
- Physcia adscendens
Lecidella lichen
- Peak month
- March
- Records since 2000
- 6,871
- Scientific name
- Lecidella elaeochroma
Dotted Ramalina
- Peak month
- March
- Records since 2000
- 6,798
- Scientific name
- Ramalina farinacea
Dark Crottle
- Peak month
- May
- Records since 2000
- 6,587
- Scientific name
- Hypogymnia physodes
Salted Shield Lichen
- Peak month
- May
- Records since 2000
- 6,211
- Scientific name
- Parmelia saxatilis
Abraded Camouflage Lichen
- Peak month
- May
- Records since 2000
- 5,486
- Scientific name
- Melanelixia subaurifera
Rim lichen
- Peak month
- June
- Records since 2000
- 5,376
- Scientific name
- Lecanora expallens
Common Green Shield Lichen
- Peak month
- March
- Records since 2000
- 5,354
- Scientific name
- Flavoparmelia caperata
Tubercled Boulder Lichen
- Peak month
- May
- Records since 2000
- 5,166
- Scientific name
- Porpidia tuberculosa
Common Goldspeck
- Peak month
- June
- Records since 2000
- 5,133
- Scientific name
- Candelariella vitellina
Shiny Camouflage Lichen
- Peak month
- May
- Records since 2000
- 4,831
- Scientific name
- Melanelixia fuliginosa
Mealy Shadow Lichen
- Peak month
- June
- Records since 2000
- 4,650
- Scientific name
- Phaeophyscia orbicularis
Polyozosia dispersa
- Peak month
- June
- Records since 2000
- 4,634
- Group
- Lichens
Flavoplaca flavocitrina
- Peak month
- August
- Records since 2000
- 4,586
- Group
- Lichens
Lungwort [lichen]
- Peak month
- March
- Records since 2000
- 4,515
- Scientific name
- Lobaria pulmonaria
Black Stone Flower
- Peak month
- March
- Records since 2000
- 4,349
- Scientific name
- Parmotrema perlatum
Granite-speck Rim Lichen
- Peak month
- June
- Records since 2000
- 4,349
- Scientific name
- Lecanora polytropa
Polyozosia albescens
- Peak month
- August
- Records since 2000
- 4,325
- Group
- Lichens
Reindeer Lichen
- Peak month
- August
- Records since 2000
- 4,213
- Scientific name
- Cladonia portentosa
Rim lichen
- Peak month
- June
- Records since 2000
- 4,199
- Scientific name
- Lecanora campestris
My Old Friend
- Peak month
- June
- Records since 2000
- 4,125
- Scientific name
- Protoparmeliopsis muralis
Asterisk Lichen
- Peak month
- May
- Records since 2000
- 4,083
- Scientific name
- Arthonia radiata
Limestone Lobed Firedot
- Peak month
- June
- Records since 2000
- 3,949
- Scientific name
- Variospora flavescens
Rhizocarpon reductum
- Peak month
- September
- Records since 2000
- 3,863
- Group
- Lichens
Brain Lichen
- Peak month
- June
- Records since 2000
- 3,724
- Scientific name
- Diploicia canescens
Lecidella lichen
- Peak month
- June
- Records since 2000
- 3,601
- Scientific name
- Lecidella scabra
Limestone Disc Lichen
- Peak month
- June
- Records since 2000
- 3,582
- Scientific name
- Lecidella stigmatea
Common Powderhorn
- Peak month
- May
- Records since 2000
- 3,571
- Scientific name
- Cladonia coniocraea
Pin-cushion Sunburst Lichen
- Peak month
- June
- Records since 2000
- 3,554
- Scientific name
- Polycauliona polycarpa
Powdered Speckled Shield Lichen
- Peak month
- March
- Records since 2000
- 3,528
- Scientific name
- Punctelia subrudecta
Tiny Button Lichen
- Peak month
- August
- Records since 2000
- 3,526
- Scientific name
- Amandinea punctata
Whitewash Lichen
- Peak month
- March
- Records since 2000
- 3,483
- Scientific name
- Phlyctis argena
Black-eye Lichen
- Peak month
- July
- Records since 2000
- 3,474
- Scientific name
- Tephromela atra
Varied Rag Lichen
- Peak month
- May
- Records since 2000
- 3,464
- Scientific name
- Platismatia glauca
Blue-gray Rosette Lichen
- Peak month
- June
- Records since 2000
- 3,454
- Scientific name
- Physcia caesia
Mealy Pixie-cup
- Peak month
- May
- Records since 2000
- 3,399
- Scientific name
- Cladonia chlorophaea
Bark Barnacles
- Peak month
- May
- Records since 2000
- 3,317
- Scientific name
- Thelotrema lepadinum
Acarospora fuscata
- Peak month
- June
- Records since 2000
- 3,214
- Group
- Lichens
Hidden Goldspeck Lichen
- Peak month
- August
- Records since 2000
- 3,160
- Scientific name
- Candelariella aurella
Flavoplaca oasis
- Peak month
- July
- Records since 2000
- 3,159
- Group
- Lichens
Orange Dot Lichen
- Peak month
- July
- Records since 2000
- 3,144
- Scientific name
- Protoblastenia rupestris
Fluffy Dust Lichen
- Peak month
- May
- Records since 2000
- 3,067
- Scientific name
- Lepraria lobificans