- Scientific name
- Parmelia squarrosa
- Common names
- IUCN Specialist Group
- Assessment status
- Assessment date
- IUCN Red List Category
- Yahr, R., Allen, J., Lymbery, C., Batallas-Molina, R., Dal Forno, M., Howe, N., Lendemer, J., McMullin, T., Mertens, A., Petix, M., Reese Næsborg, R., Roberts, F., Sharrett, S. & Villella, J.
- Divakar, P.
Parmelia squarrosa is common and abundant in forests in North America, India, China, and Japan in addition to being known from scattered locations across Europe and other parts of northern Asia. It does not qualify for any threat categories, and is, therefore, listed as Least Concern.
is widespread in eastern North America and in moist, coastal influenced areas of western North America from Alaska south to California (Brodo et al
. 2001), and scattered across many countries in the northern hemisphere in Europe (Hyvonen 1985), Turkey (Yazici et al.
2013), the Russian Federation (Tolpysheva and Konnychev 2015), China, Japan, Korea, and the Himalayas (Hale 1987, Divakar and Upreti 2005).
Population and Trends
The population is inferred to be stable, as it grows on both young and old trees, and can be found in open primary forest in addition to disturbed habitats.
Population Trend: stable
Habitat and Ecology
is a member of a common and abundant guild of epiphytic lichens found across forest types and in microhabitats common across primary and secondary forests, including relatively young trees. It can also be found on mossy rocks (Brodo et al
Although forests throughout this species' range are impacted by habitat loss, this species is abundant and the population is inferred to be robust to many changes in land management.
Source and Citation
Yahr, R., Allen, J., Lymbery, C., Batallas-Molina, R., Dal Forno, M., Howe, N., Lendemer, J., McMullin, T., Mertens, A., Petix, M., Reese Næsborg, R., Roberts, F., Sharrett, S. & Villella, J. 2021. Parmelia squarrosa. The IUCN Red List of Threatened Species 2021: e.T194660642A194678134. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T194660642A194678134.en
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