• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Lepraria normandinoides Lendemer & R.C. Harris

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Scientific name
Lepraria normandinoides
Lendemer & R.C. Harris
Common names
Lichen Vulgaris
IUCN Specialist Group
Assessment status
Proposed by
James Lendemer
Comments etc.
James Lendemer

Assessment Notes

Taxonomic notes

This species was described more than a decade ago (Lendemer & Harris 2007) from numerous collections made throughout eastern North America. Subsequent study with molecular data (Lendemer 2012) demonstrated that the chemoype with fumarprotocetraric acid should be treated as a distinct species, and that was segregated to L. oxybapha.

Why suggested for a Global Red List Assessment?

Geographic range

Lepraria normandinoides is endemic to North America. It is widespread in temperate eastern North America, with disjunct populations in montane southwestern North America (Lendemer 2012, 2013).

Population and Trends

Comprehensive detailed population data are unavailable for this taxon. However, it is common and widespread in many different habitats (Lendemer 2013, Tripp & Lendemer 2020). There is no indication the species is restricted to a narrow range of habitats or substrates.

ASSESSMENT: Least Concern
Given the large number sites where it is extant, large geographic range, large population size, and absence of documented or suspected declines, the species does not meet the thresholds for any threat criteria.

Population Trend: Stable

Habitat and Ecology

This species occurs on the bases and boles of trees, as well as sheltered and protected surfaces of non-calcareous rocks. It occurs across a broad range of forested habitats, elevations and habitat qualities throughout its range.

Boreal ForestTemperate Forest


The primarily threat to this species is urbanization as it does not typically occur in urban areas. Otherwise it appears to be tolerant of disturbance.

Housing & urban areasCommercial & industrial areas

Conservation Actions

Many sites where Lepraria normandinoides occurs are located on public lands and in protected areas where it is incidentally protected. This species would benefit from broader awareness and training as to the impacts of urbanization generally on lichens.

Formal educationTrainingAwareness & communications

Research needed

This species would benefit from demographic studies and long-term monitoring of population trends.

Population size, distribution & trendsPopulation trendsHabitat trends

Use and Trade



Known distribution - countries

Regional Population and Trends

Country Trend Redlisted