Common Greenshield Lichen

(Flavoparmelia caperata)

Conservation Status
Common Greenshield Lichen
  IUCN Red List

not listed


NNR - Unranked


not listed


Common Greenshield Lichen grows on bark of broadleaved trees and sometimes also on rock.

The vegetative body (thallus) is 2 to 8 in diameter, leaf-like (foliose), and divided into lobes. It is attached to the substrate (usually bark) at occasional points by tufted or fibrous, anchoring structures (rhizines). The rhizines are black and unbranched. They are dense toward the center, sparse and short toward the margins. The lobes are irregular, rounded, flat, and to 5 16 in diameter. The upperside is pale yellowish-green and is not spotted. It is smooth at first, often becoming rough, wrinkled, and folded with age. The underside is black except at the edges, where it is pale brown. It rarely produces spore-producing structures (apothecia).


Similar Species


Hammered Shield Lichen (Parmelia sulcata) is gray, never green. The lobes have a network of raised ridges giving at a hammered appearance.

Rock Greenshield Lichen (Flavoparmelia baltimorensis) has globe-shaped, pustular outgrowths on the upper surface. It grows only on rocks.

Speckled Greenshield Lichen (Flavoparmelia flavientor) has white pores on the upper surface.






Growth Form






Bark of broadleaved trees, fence posts, and sometimes also on rock. Also found in human populated areas.






Distribution Map



4, 7, 24, 26, 29, 30.




Widespread and extremely common

  Kingdom Fungi (fungi)  
  Subkingdom Dikarya  
  Phylum Ascomycota (sac fungi)  
  Subphylum Pezizomycotina  
  Class Lecanoromycetes (common lichens)  
  Subclass Lecanoromycetidae (shield lichens, sunburst lichens, rosette lichens, and allies)  


Lecanorales (shield lichens, rim lichens, and allies)  




Parmeliaceae (shield lichens and allies)  
  Subfamily Parmelioideae (typical shield lichens)  


Flavoparmelia (greenshield lichens)  
  Mycobiont Flavoparmelia caperata  



Parmelia caperata

Parmelia cylisphora

Parmelia flavicans

Parmelia herreana

Parmelia negativa

Pseudoparmelia caperata


Common Names


Common Green Shield Lichen

Common Greenshield Lichen

Flavoparmelia Lichen










An open, disk-shaped or cup-shaped, reproductive structure, with spore sacs on the upper surface, that produces spores for the fungal partner of a lichen.



Adjective: Leaf-like growth form; referring to lichens with leaf-like growths divided into lobes.
Noun: The leaf-like, vegetative body of a lichen (thallus) that has thin, flat lobes which are free from the substrate.



A root-like structure of a lichen that attaches the lower layer to the substrate.



The vegetative body of a lichen composed of both the alga and the fungus.








Pollution Tolerant

Unlike most lichens, Greenshield lichens (Flavoparmelia spp.) are relatively tolerant of air pollution. They are among the first noticeable lichens to return to areas that have been rid of lichens due to pollution.

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    Common Greenshield Lichen      
    Common Greenshield Lichen   Common Greenshield Lichen  
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    Common Greenshield Lichen   Common Greenshield Lichen  

Alfredo Colon

    Common Greenshield Lichen      


    Common Greenshield Lichen   Common Greenshield Lichen  
    Common Greenshield Lichen      
    Common Greenshield Lichen   Common Greenshield Lichen  
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Common Greenshield Lichen (Flavoparmelia caperata)
Andree Reno Sanborn
  Common Greenshield Lichen (Flavoparmelia caperata)  



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Other Videos
  Flavoparmelia caperata lichen - Líquen verde - Líquens (Parmeliaceae)

Published on May 27, 2015

Flavoparmelia caperata - common greenshield lichen - Líquen verde - Líquens de árvore - Líquen na árvore (Fungi - Ascomycota - Lecanoromycetes - Lecanorales - Parmeliaceae) Micobionte, Ficobionte, Biodiversidade, Biodiversity, Nature videos, Vídeos de Natureza, Santo Amaro da Imperatriz, Florianópolis, Santa Catarina, Brasil

Os líquenes são organismos muito particulares, que resultam de uma associação simbiótica estável entre um fungo e uma alga, ou uma cianobactéria. Esta associação permite que os líquenes se desenvolvam em habitats onde nenhum dos seus constituintes conseguiria sobreviver sozinho.

A simbiose confere aos líquenes características muito próprias, entre as quais uma elevada sensibilidade a poluentes ambientais que os torna excelentes indicadores da qualidade do ar e do habitat. De um modo geral, um elevado número de espécies é sempre indicador de boa qualidade atmosférica

original videos filmings, 3D modelings, arts animations created and directed by Diego da Cruz Pereira (DiegoDCvids)

Google translation:
Flavoparmelia caperata - common GreenShield lichen - green lichen - tree Lichens - Lichen on the tree (Fungi - Ascomycota - Lecanoromycetes - Lecanorales - Parmeliaceae) mycobiont, Ficobionte, Biodiversity, Biodiversity, Nature Videos, Nature Videos, Santo Amaro da Imperatriz, Florianopolis, Santa Catarina, Brazil

Lichens are very particular organisms, resulting in a stable symbiotic association between a fungus and an alga or a cyanobacterium. This association allows lichens are developed in habitats where none of his constituents could survive alone.

The symbiosis gives very specific features lichens, including a high sensitivity to environmental pollutants which makes them excellent indicators of air quality and habitat. In general, a large number of species is always good indicator of air quality

original filmings videos, 3D modelings, animations arts created and directed by Diego da Cruz Pereira (DiegoDCvids)




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January 2024

Location: Fairview Twp, Cass Co.

Common Greenshield Lichen  

Location: Fairview Twp.

Common Greenshield Lichen  
  Alfredo Colon

Location: Albany, NY

Common Greenshield Lichen  

Location: Cass County

Common Greenshield Lichen  




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