Coastal Ragweed vs carvalheiro

Ambrosia hispida compared with Quercus robur

Taxonomic Classification

Rank	Coastal Ragweed	carvalheiro
Kingdom same	Plantae (planta)	Plantae (planta)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Asterales (Daisies & Sunflowers)	Fagales (Beeches & Oaks)
Family	Asteraceae (Daisy Family)	Fagaceae (Beech Family)
Genus	Ambrosia	Quercus (Oaks)
Species	Ambrosia hispida	Quercus robur

Evolutionary Relationship

Coastal Ragweed and carvalheiro share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Coastal Ragweed

LC — Least Concern

carvalheiro

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Coastal Ragweed	carvalheiro
Diet	—	Autotroph
Average Lifespan	—	1000 years
Average Length	—	25.0 m
Average Weight	—	—

Habitat & Geographic Range

Coastal Ragweed

Habitat

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

Range

Found in Cuba.

carvalheiro

Habitat

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

Range

Widely distributed across Africa (Lesotho, South Africa), Asia (Armenia, India), Europe (8 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (4 countries).

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.

carvalheiro

Uno de los árboles caducifolios más importantes y extendidos de Europa, el roble pedunculado (Quercus robur) puede vivir más de 1.000 años, alcanzar 40 metros de altura y albergar la mayor biodiversidad de cualquier especie arbórea europea: más de 2.300 especies de insectos, hongos, líquenes, musgos y aves dependen directamente de los robles maduros. Distribuido por Europa hasta Asia occidental en bosques templados, su madera dura y duradera ha sido fundamental en la construcción naval, la arquitectura y la fabricación de barriles a lo largo de la historia.