Bog Rosemary vs Chubby Grimmia

Andromeda polifolia compared with Schistidium flaccidum

Key Differences

• Bog Rosemary is Endangered while Chubby Grimmia is Not Evaluated.

Taxonomic Classification

Rank	Bog Rosemary	Chubby Grimmia
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Bryophyta
Class	Magnoliopsida (Dicots)	Bryopsida (Bryopsida)
Order	Ericales (Ericales)	Grimmiales (Grimmiales)
Family	Ericaceae	Grimmiaceae
Genus	Andromeda	Schistidium
Species	Andromeda polifolia	Schistidium flaccidum

Evolutionary Relationship

Bog Rosemary and Chubby Grimmia share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Bog Rosemary

EN — Endangered

Chubby Grimmia

NE — Not Evaluated

Physical Characteristics

Attribute	Bog Rosemary	Chubby Grimmia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bog Rosemary

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chubby Grimmia

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Bog Rosemary

The Bog Rosemary (Andromeda polifolia) is a species in the genus Andromeda. It is currently classified as Endangered on the IUCN Red List. Found across Europe (5 countries) and North America (United States).

Chubby Grimmia

The Chubby Grimmia (Schistidium flaccidum) is a small acrocarpous moss in the family Grimmiaceae, found on acidic rock surfaces across northern Europe and Scandinavia. Despite its common name, the species belongs to the genus Schistidium rather than Grimmia, although the two genera are closely related within the family. S. flaccidum grows in compact cushion-forming tufts on siliceous boulders, cliff faces, and rocky outcrops in humid, often montane environments. The moss is documented from Norway and Sweden, where it occurs in habitats typical of boreal and subarctic rock communities. Like other Schistidium species, it produces sporophytes with exserted or immersed capsules that release spores for dispersal. The genus Schistidium is one of the largest among saxicolous (rock-dwelling) mosses, with many species distinguished by subtle differences in leaf shape, costa characteristics, and peristome structure. C. flaccidum has not been evaluated for conservation status by the IUCN and is listed as Not Evaluated. Rocky habitats support diverse bryophyte communities that are sensitive to air quality and moisture regimes. The ecology of Schistidium species on Scandinavian rock communities has been the subject of detailed phytosociological studies.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden