Awnless Barnyard Grass vs Coast Barnyard Grass

Echinochloa colonum compared with Echinochloa walteri

Taxonomic Classification

Rank	Awnless Barnyard Grass	Coast Barnyard Grass
Kingdom same	Plantae (식물)	Plantae (식물)
Phylum same	Magnoliophyta (피자식물문)	Magnoliophyta (피자식물문)
Class same	Liliopsida (백합강)	Liliopsida (백합강)
Order same	Poales (벼목)	Poales (벼목)
Family same	Poaceae (Grass Family)	Poaceae (Grass Family)
Genus same	Echinochloa	Echinochloa
Species	Echinochloa colonum	Echinochloa walteri

Evolutionary Relationship

Awnless Barnyard Grass and Coast Barnyard Grass share a common ancestor at the Genus level: Echinochloa.

Conservation Status

Awnless Barnyard Grass

LC — Least Concern

Coast Barnyard Grass

LC — Least Concern

Physical Characteristics

Attribute	Awnless Barnyard Grass	Coast Barnyard Grass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Awnless Barnyard Grass

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (16 countries), Asia (18 countries), Europe (19 countries), North America (10 countries), Oceania and the Pacific (10 countries), and South America (9 countries).

Coast Barnyard Grass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Brazil and Canada.

Awnless Barnyard Grass

The Awnless Barnyard Grass (Echinochloa colonum) is a species in the genus Echinochloa. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations.

Coast Barnyard Grass

Coast barnyard grass (Echinochloa walteri) is a robust annual grass in the family Poaceae, native to wetlands and coastal marshes of eastern North America, from southern Canada south through the United States. It grows in tidal fresh marshes, brackish marshes, pond margins, wet roadsides, and floodplain habitats, where it can form dense stands exceeding 2 metres in height. The genus Echinochloa is widespread globally and includes several species of agricultural importance, both as crops and weeds. Coast barnyard grass is distinguished by its long, bristle-tipped spikelets and preference for wetland edges. It produces abundant seeds that are consumed by waterfowl including ducks, rails, and sparrows, making stands of this species ecologically valuable in coastal wetland systems. The species tolerates seasonal flooding, fluctuating salinity, and disturbed conditions. Its IUCN status is Least Concern, reflecting its broad distribution across eastern North America and its capacity to colonise disturbed wetland habitats rapidly. While not an invasive species outside its native range, it is sometimes managed in wetland restoration projects to prevent monoculture dominance.

Shared Countries

Both species can be found in 2 countries:

🇧🇷 Brazil 🇨🇦 Canada