Brindled Plume vs Clustered Stonewort

Amblyptilia punctidactyla compared with Tolypella glomerata

Key Differences

Brindled Plume is Least Concern while Clustered Stonewort is Vulnerable.

Taxonomic Classification

Rank	Brindled Plume	Clustered Stonewort
Kingdom	Animalia (Tier)	Plantae (Pflanzen)
Phylum	Arthropoda (Gliederfüßer)	Charophyta (Charophyta)
Class	Insecta (Insekten)	Charophyceae (Charophyceae)
Order	Lepidoptera (Schmetterlinge)	Charales (Charales)
Family	Pterophoridae	Characeae
Genus	Amblyptilia	Tolypella
Species	Amblyptilia punctidactyla	Tolypella glomerata

Conservation Status

Brindled Plume

LC — Least Concern

Clustered Stonewort

VU — Vulnerable

Physical Characteristics

Attribute	Brindled Plume	Clustered Stonewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brindled Plume

Habitat

Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and deserts and xeric shrublands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Asia (4 countries) and Europe (25 countries).

Clustered Stonewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brindled Plume

The Brindled Plume (Amblyptilia punctidactyla) is a species in the genus Amblyptilia. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and deserts and xeric shrublands within the Palearctic biogeographic realm. Populations are also found in montane and highland en

Clustered Stonewort

Tolypella glomerata, the clustered stonewort, is a charophyte alga in the family Characeae, found in calcareous, nutrient-poor freshwater habitats including lakes, ponds, ditches, and slow-flowing water in northwestern and northern Europe. Charophytes are macroscopic green algae with a distinctive whorl-like arrangement of branches and a complex, plant-like structure that distinguishes them from other algae. T. glomerata is encrusted with calcium carbonate deposits (hence 'stonewort'), giving it a pale, grey-green appearance and rough texture. The species colonizes clear, low-nutrient water over fine sediment or gravel substrates where competition from vascular plants is reduced by nutrient limitation. It is listed as Vulnerable by the IUCN, reflecting significant declines driven by eutrophication (nutrient enrichment from agriculture and sewage), which promotes the growth of vascular plants and phytoplankton that shade out stoneworts. Drainage, water abstraction, and peat cutting also threaten its habitats. Charophyte diversity has declined substantially across lowland Europe and North America over the past century, with many species becoming locally extinct from sites they once colonized.