isoète à spores spinuleuses vs isoète maritime

Isoetes echinospora compared with Isoetes maritima

Key Differences

• isoète à spores spinuleuses is Critically Endangered while isoète maritime is Least Concern.

Taxonomic Classification

Rank	isoète à spores spinuleuses	isoète maritime
Kingdom same	Plantae (plante)	Plantae (plante)
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 maritima

Evolutionary Relationship

isoète à spores spinuleuses and isoète maritime share a common ancestor at the Genus level: Isoetes.

Conservation Status

isoète à spores spinuleuses

CR — Critically Endangered

isoète maritime

LC — Least Concern

Physical Characteristics

Attribute	isoète à spores spinuleuses	isoète maritime
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

isoète à spores spinuleuses

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.

isoète maritime

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Canada and Norway.

isoète à spores spinuleuses

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.

isoète maritime

Coastal quillwort (Isoetes maritima) is an aquatic or semi-aquatic lycophyte in the family Isoetaceae, native to Atlantic coastal regions of North America and western Europe, including eastern Canada, the northeastern United States, Ireland, the United Kingdom, and northern France. It grows in shallow brackish or slightly saline pools, coastal lagoons, rock crevices, and wet hollows that experience seasonal drying. Like all Isoetes species, it has quill-like leaves arising from a corm-like base and reproduces via spores produced in sporangia embedded at leaf bases. Coastal quillwort occupies a specialised niche at the intersection of marine and freshwater habitats, tolerating fluctuating salinity levels. Its populations are often small and localised, making them vulnerable to habitat modification, drainage, and coastal development. The IUCN assesses coastal quillwort as Least Concern overall, but many regional populations are protected or listed as threatened. As an ancient lineage of vascular plants, Isoetes species represent living relicts of the Carboniferous-era lycopsid forests and hold significant evolutionary interest for botanists.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway