Coastal Mushoom vs Dwarf Water Clover

Agaricus litoralis compared with Marsilea minuta

Taxonomic Classification

Rank	Coastal Mushoom	Dwarf Water Clover
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Tracheophyta
Class	Agaricomycetes (Mushrooms)	Polypodiopsida (Polypodiopsida)
Order	Agaricales (Gilled Mushrooms)	Salviniales (Salviniales)
Family	Agaricaceae (Agarics)	Marsileaceae
Genus	Agaricus (Button Mushrooms)	Marsilea
Species	Agaricus litoralis	Marsilea minuta

Conservation Status

Coastal Mushoom

LC — Least Concern

Dwarf Water Clover

LC — Least Concern

Physical Characteristics

Attribute	Coastal Mushoom	Dwarf Water Clover
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Mushoom

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Dwarf Water Clover

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and mangrove forests and coastal wetlands, among 4 distinct biome types spanning the Indomalayan and Palearctic realms.

Range

Widely distributed across Africa (Algeria, Comoros), Asia (Bhutan, Taiwan, Vietnam), North America (United States), and South America (Brazil).

Coastal Mushoom

Agaricus litoralis, the coastal mushroom, is a saprotrophic agaric fungus in the family Agaricaceae occurring in sand dunes, coastal grassland, and sandy soil habitats along the coasts of northwestern Europe, with confirmed records from Belgium, Denmark, Norway, and Sweden. The genus Agaricus contains the familiar cultivated button mushroom (A. bisporus) along with hundreds of wild species, and members are characterized by a ring on the stem and browning, discoloring, or non-discoloring flesh when cut, features used in field identification. Agaricus litoralis is a medium-sized mushroom producing white to cream-colored caps 4–10 centimeters across with pinkish then dark brown gills and a stout stem with a double ring, fruiting in sand dune hollows and the grassy margins of coastal habitats from summer through autumn. The specific epithet litoralis refers directly to its coastal habitat preference. As a saprotroph, it decomposes organic matter in the sandy soil substrate, releasing nutrients back into the ecosystem. The species is classified as Least Concern by the IUCN, being relatively widespread in suitable coastal sandy habitat across northwestern Europe. Like many coastal fungi, it is specifically adapted to the nutrient-poor, well-drained, alkaline conditions of stabilized sand dune systems.