巴西凫 vs Coastal Ragweed

Amazonetta brasiliensis compared with Ambrosia hispida

Taxonomic Classification

Rank	巴西凫	Coastal Ragweed
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Chordata (脊索动物门)	Magnoliophyta (木兰植物门)
Class	Aves (鳥綱)	Magnoliopsida (木兰纲)
Order	Anseriformes (雁形目)	Asterales (菊目)
Family	Anatidae	Asteraceae (Daisy Family)
Genus	Amazonetta	Ambrosia
Species	Amazonetta brasiliensis	Ambrosia hispida

Conservation Status

巴西凫

LC — Least Concern

Coastal Ragweed

LC — Least Concern

Physical Characteristics

Attribute	巴西凫	Coastal Ragweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

巴西凫

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela).

Coastal Ragweed

Habitat

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

Range

Found in Cuba.

巴西凫

巴西鸭（Amazonetta brasiliensis）在IUCN红色名录中被列为无危（LC）物种。分布广泛，种群数量丰富且稳定，无紧迫保护问题。

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.