Coastal Ragweed vs Common Eyelash

Ambrosia hispida compared with Scutellinia scutellata

Taxonomic Classification

Rank	Coastal Ragweed	Common Eyelash
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Pezizomycetes (Pezizomycetes)
Order	Asterales (Daisies & Sunflowers)	Pezizales (Pezizales)
Family	Asteraceae (Daisy Family)	Pyronemataceae
Genus	Ambrosia	Scutellinia
Species	Ambrosia hispida	Scutellinia scutellata

Conservation Status

Coastal Ragweed

LC — Least Concern

Common Eyelash

LC — Least Concern

Physical Characteristics

Attribute	Coastal Ragweed	Common Eyelash
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Ragweed

Habitat

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

Range

Found in Cuba.

Common Eyelash

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil).

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.

Common Eyelash

The Common Eyelash (<em>Scutellinia scutellata</em>) is a small cup fungus belonging to the genus Scutellinia within the family Pyronemataceae. It is recognised by its distinctive scarlet to bright red disc-shaped fruiting body, typically measuring just a few millimetres across, and fringed with dark brown hair-like structures resembling eyelashes, from which its common name derives. This species is native to Asia and Europe and North America, and typically inhabits decomposing wood, moist soil, and other organic substrates in humid environments. Its geographic range is wide, with confirmed records across Asia including Taiwan, Europe including Belgium, Denmark, Norway, and Portugal, North America including the United States, and South America including Brazil. <em>Scutellinia scutellata</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent abundance. Biological traits such as lifespan, size, and specific dietary habits remain poorly documented in the scientific literature, though as a saprotrophic fungus it typically obtains nutrients by decomposing dead organic matter.