Coastal Ragweed vs

Ambrosia hispida compared with Sphingobium scionense

Key Differences

Coastal Ragweed is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Coastal Ragweed
Kingdom	Plantae (Plants)	Bacteria (Bacteria)
Phylum	Magnoliophyta (Flowering Plants)	Proteobacteria (Proteobacteria)
Class	Magnoliopsida (Dicots)	Alphaproteobacteria (Alphaproteobacteria)
Order	Asterales (Daisies & Sunflowers)	Sphingomonadales (Sphingomonadales)
Family	Asteraceae (Daisy Family)	Sphingomonadaceae
Genus	Ambrosia	Sphingobium
Species	Ambrosia hispida	Sphingobium scionense

Conservation Status

Coastal Ragweed

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Coastal Ragweed
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.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Sphingobium scionense is a Gram-negative, aerobic rod first isolated in the Scion research environment in New Zealand. It inhabits forest soils and plant-associated substrates of Oceania. This chemoheterotroph degrades complex aromatic and aliphatic organic compounds in temperate forest soil environments.