CR

limbergsfibbla

Hieracium phaleratum

Unknown

Overview

Limbergsfibbla (Hieracium phaleratum) is a rare perennial hawkweed species characterized by its distinctive pale yellow flower heads and deeply lobed basal leaves with silvery-white undersides. This specialized alpine plant serves as a crucial pollinator resource for high-altitude insects and contributes to soil stabilization on steep mountain slopes through its extensive root system.

Hieracium phaleratum faces severe population decline primarily due to habitat loss from agricultural intensification and urban development in its limited alpine and subalpine range. Climate change poses an additional threat by shifting suitable habitat zones upward in elevation, reducing available habitat area. The species' restricted distribution and small population size make it particularly vulnerable to stochastic events and genetic bottlenecks.

Threat summary

Habitat

Limbergsfibbla occupies narrow ledges and crevices in limestone cliff faces at elevations between 2,200-2,800 meters. The species requires well-drained calcareous soils with consistent moisture from snowmelt and thrives in partially shaded microsites protected from harsh alpine winds.

TERRESTRIAL· major

Other threatened species in Asteraceae

Taraxacum lissocarpumCR

Taraxacum lissocarpum

Unknown
CR

armfibbla

Hieracium manocolum

Unknown
CR

Salmea umbratilis

Unknown
CR

spenatfibbla

Hieracium daniciforme

Unknown

Frequently asked questions

Why is limbergsfibbla classified as Critically Endangered?
limbergsfibbla is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Hieracium phaleratum faces severe population decline primarily due to habitat loss from agricultural intensification and urban development in its limited alpine and subalpine range. Climate change poses an additional threat by shifting suitable habitat zones upward in elevation, reducing available habitat area. The species' restricted distribution and small population size make it particularly vulnerable to stochastic events and genetic bottlenecks.
Where does limbergsfibbla live?
limbergsfibbla occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to limbergsfibbla?
The main threats to limbergsfibbla are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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