Pilosella dimorphoides
Local name: grenmarsvæve
Grenmarsvæve (Pilosella dimorphoides) is a distinctive hawkweed species characterized by its dimorphic leaf structure, featuring both basal rosette leaves and reduced stem leaves with dense stellate hairs. This perennial herb plays a crucial role in specialized grassland ecosystems, providing nectar for rare pollinating insects and serving as a host plant for several endemic invertebrate species.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Asterales
Family
Asteraceae
Genus
Pilosella
Pilosella dimorphoides belongs to the family Asteraceae, order Asterales, within the Magnoliopsida class.
Species Profile
Grenmarsvæve (Pilosella dimorphoides) is a distinctive hawkweed species characterized by its dimorphic leaf structure, featuring both basal rosette leaves and reduced stem leaves with dense stellate hairs. This perennial herb plays a crucial role in specialized grassland ecosystems, providing nectar for rare pollinating insects and serving as a host plant for several endemic invertebrate species.
Pilosella dimorphoides faces severe population decline primarily due to habitat loss from agricultural expansion and urban development in its limited range. Climate change and invasive species competition further threaten the remaining fragmented populations of this endemic hawkweed species.
Key Facts
Habitat & Distribution
Grenmarsvæve occurs in nutrient-poor calcareous grasslands and rocky slopes at elevations between 200-800 meters, typically in areas with shallow soils over limestone bedrock. It requires sites with specific moisture regimes - well-drained but not drought-stressed - often found along transitional zones between dry meadows and scrubland margins.
Threats
IUCN Red List: Endangered
Pilosella dimorphoides faces severe population decline primarily due to habitat loss from agricultural expansion and urban development in its limited range. Climate change and invasive species competition further threaten the remaining fragmented populations of this endemic hawkweed species.
Habitat loss from agricultural conversion
Urban development and infrastructure expansion
Climate change altering suitable habitat conditions
Competition from invasive plant species
Small population size and genetic bottlenecks
Community Sightings
Report a sightingNo community sightings yet. Be the first to report!
Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Pilosella dimorphoides (Pilosella dimorphoides). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/grenmarsvve