Bristlelike Quillwort vs River Quillwort

Isoetes echinospora compared with Isoetes fluitans

Key Differences

• Bristlelike Quillwort is Critically Endangered while River Quillwort is Endangered.

Taxonomic Classification

Rank	Bristlelike Quillwort	River Quillwort
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Tracheophyta	Tracheophyta
Class same	Lycopodiopsida (Lycopodiopsida)	Lycopodiopsida (Lycopodiopsida)
Order same	Isoetales (Isoetales)	Isoetales (Isoetales)
Family same	Isoetaceae	Isoetaceae
Genus same	Isoetes	Isoetes
Species	Isoetes echinospora	Isoetes fluitans

Evolutionary Relationship

Bristlelike Quillwort and River Quillwort share a common ancestor at the Genus level: Isoetes.

Conservation Status

Bristlelike Quillwort

CR — Critically Endangered

River Quillwort

EN — Endangered

Physical Characteristics

Attribute	Bristlelike Quillwort	River Quillwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bristlelike Quillwort

Habitat

Inhabits temperate broadleaf and mixed forests and 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 Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

River Quillwort

Bristlelike Quillwort

The Bristlelike Quillwort (Isoetes echinospora) is a species in the genus Isoetes. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.