Blue stingray vs Coastal Ragweed

Dasyatis chrysonota compared with Ambrosia hispida

Key Differences

• Blue stingray is Near Threatened while Coastal Ragweed is Least Concern.

Taxonomic Classification

Rank	Blue stingray	Coastal Ragweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Elasmobranchii	Magnoliopsida (Dicots)
Order	Myliobatiformes (Myliobatiformes)	Asterales (Daisies & Sunflowers)
Family	Dasyatidae	Asteraceae (Daisy Family)
Genus	Dasyatis	Ambrosia
Species	Dasyatis chrysonota	Ambrosia hispida

Conservation Status

Blue stingray

NT — Near Threatened

Coastal Ragweed

LC — Least Concern

Physical Characteristics

Attribute	Blue stingray	Coastal Ragweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue stingray

Habitat

Found across multiple habitat types including temperate coniferous forests, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Israel and Tunisia. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Coastal Ragweed

Habitat

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

Range

Found in Cuba.

Blue stingray

The Blue stingray (Dasyatis chrysonota) is a species in the genus Dasyatis. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including temperate coniferous forests, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are al

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.