Beech Mushroom vs Coastal Ragweed

Hypsizygus tessulatus compared with Ambrosia hispida

Key Differences

• Beech Mushroom is Data Deficient while Coastal Ragweed is Least Concern.

Taxonomic Classification

Rank	Beech Mushroom	Coastal Ragweed
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Agaricales (Gilled Mushrooms)	Asterales (Daisies & Sunflowers)
Family	Lyophyllaceae	Asteraceae (Daisy Family)
Genus	Hypsizygus	Ambrosia
Species	Hypsizygus tessulatus	Ambrosia hispida

Conservation Status

Beech Mushroom

DD — Data Deficient

Coastal Ragweed

LC — Least Concern

Physical Characteristics

Attribute	Beech Mushroom	Coastal Ragweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Mushroom

Habitat

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

Range

Distributed across Denmark, Norway, and United States.

Coastal Ragweed

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Cuba.

Beech Mushroom

The Beech Mushroom (Hypsizygus tessulatus) is a species in the genus Hypsizygus. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in forest floors, decomposing wood, and soil ecosystems.

Coastal Ragweed

Coastal ragweed (Ambrosia hispida) is a perennial herb in the family Asteraceae, native to the coastal dunes, sandy beaches, and cays of Cuba, the Bahamas, and the wider Caribbean region. It grows in pioneer beach and dune vegetation, often forming spreading colonies that help stabilise loose coastal sands. Like other members of the genus Ambrosia, it bears inconspicuous greenish-white flowers arranged in racemes; male flower heads produce wind-dispersed pollen that can trigger allergic rhinitis in sensitive individuals. The deeply lobed, hispid leaves are adapted to reflect intense solar radiation and tolerate salt spray. Coastal ragweed plays an ecological role in early dune succession, binding sand and enabling other plant species to establish. The genus is widespread globally, with several Ambrosia species considered noxious weeds in agricultural settings, though Ambrosia hispida is restricted to its native Caribbean coastal range. The IUCN assesses it as Least Concern, reflecting adequate population size across its Caribbean coastal distribution. Pressure from coastal development and tourism infrastructure poses a localised threat to dune communities it inhabits.