Common Seahorse vs Flat-Stem Oat Grass

Hippocampus kuda compared with Danthonia compressa

Key Differences

• Common Seahorse is Vulnerable while Flat-Stem Oat Grass is Not Evaluated.

Taxonomic Classification

Rank	Common Seahorse	Flat-Stem Oat Grass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Actinopterygii (Ray-finned Fish)	Liliopsida (Monocots)
Order	Perciformes (Perch-like Fish)	Poales (Grasses)
Family	Pomacentridae (Clownfish & Damselfish)	Poaceae (Grass Family)
Genus	Amphiprion (Clownfish)	Danthonia
Species	Hippocampus kuda	Danthonia compressa

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Flat-Stem Oat Grass

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seahorse	Flat-Stem Oat Grass
Diet	Carnivore	—
Average Lifespan	5 years	—
Average Length	17 cm	—
Average Weight	10 g	—

Habitat & Geographic Range

Common Seahorse

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 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, India, Indonesia, Japan, and Philippines. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Flat-Stem Oat Grass

Habitat

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

Range

Distributed across Canada and United States.

Common Seahorse

The common seahorse is found in tropical and temperate waters. Males carry and deliver the babies.