16/06/2026
🍃 Lichen of the Month: Blue Felt Lichen
This month we're highlighting a very special and charismatic lichen found in Newfoundland and Labrador: the Blue Felt Lichen (Pectenia plumbea).
Known for its blue-grey colour and felt-like texture, Blue Felt Lichen is a species that often captures the attention of anyone lucky enough to encounter it. It produces distinctive orangish-brown “fruiting bodies,” called apothecia, which are structures that release the fungal spores. Formerly classified in the genus Degelia, this species is now placed in the genus Pectenia.
🍃 Where to find it:
Blue Felt Lichen grows primarily on the bark of tree trunks in humid, mature forests. In Newfoundland and Labrador, it is commonly found on hardwoods such as trembling aspen, but it can also occur on softwoods such as white spruce, depending on local environmental conditions. It is often associated with old forests and areas that experience frequent fog, rainfall, or consistently high humidity. As a result, it is commonly found in coastal forests, however, it can also be found in inland regions on the island of Newfoundland, depending on environmental conditions.
✨ Fun facts:
• Blue Felt Lichen gets its name from its distinctive blue-grey colour and velvety, felt-like surface. When dry, the lichen is a light blue-grey, but when wet it becomes a deep blue to nearly black-blue colour
• Unlike plants, lichens are partnerships between a fungus and a photosynthetic organism. In this case, Blue Felt Lichen contains cyanobacteria rather than green algae
• Because it contains cyanobacteria, it is able to fix atmospheric nitrogen and release it into forested ecosystems, making it biologically available • This species is often associated with the Lobarion community, a group of large, “leafy” lichens that thrive in humid, stable forest environments
• The presence of Lobarion species, including the blue felt lichen, can indicate that a forest has a high humidity and good air quality
• Blue Felt Lichen typically grows as individual rosettes, but may grow as extensive mat-like colonies that spread across tree trunk when the conditions are just right
• In Canada, the species was assessed as Special Concern by COSEWIC and was listed with the same status under the federal Species at Risk Act (SARA)
• On the island of Newfoundland, Blue Felt Lichen is listed as Vulnerable under the Newfoundland and Labrador Endangered Species Act
🌲 Why it matters:
Blue Felt Lichen is more than just a beautiful forest resident. As a member of the Lobarion community, its presence in a region can indicate ecologically important forests that support rich lichen diversity and stable environmental conditions. Furthermore, this lichen plays an important role in forest productivity, due to its ability to fix atmospheric nitrogen. Protecting these forests helps conserve not only Blue Felt Lichen, but many other species that depend on these unique ecosystems.
📸 Photo credits:
All photographs featured in this post were taken by Riley Henniffent.
Thanks for following along with our Lichen of the Month series! Keep an eye out for our next featured species. 🍃