Common Silver Hairgrass vs Leopard

Aira caryophyllea compared with Panthera pardus

Key Differences

Common Silver Hairgrass is Endangered while Leopard is Vulnerable.

Taxonomic Classification

Rank	Common Silver Hairgrass	Leopard
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Liliopsida (単子葉植物綱)	Mammalia (哺乳類)
Order	Poales (イネ目)	Carnivora (ネコ目)
Family	Poaceae (Grass Family)	Felidae (Cats)
Genus	Aira	Panthera (Big Cats)
Species	Aira caryophyllea	Panthera pardus

Conservation Status

Common Silver Hairgrass

EN — Endangered

Leopard

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Silver Hairgrass	Leopard
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	1.9 m
Average Weight	—	60.0 kg

Habitat & Geographic Range

Common Silver Hairgrass

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Cameroon), Asia (Japan, South Korea), Europe (6 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (4 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Leopard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 9 distinct biome types spanning the Afrotropic and Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across China, India, Kenya, South Africa, and Tanzania. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Silver Hairgrass

<em>Aira caryophyllea</em>, commonly known as Common Silver Hairgrass, is a slender annual grass belonging to the family Poaceae within the order Poales. This delicate grass is currently classified as Endangered on the IUCN Red List, reflecting significant conservation concern despite its historically broad distribution. It is typically found across a remarkable diversity of biome types, including tropical and subtropical moist broadleaf forests, grasslands, savannas, and flooded habitats, demonstrating notable ecological versatility. Its geographic range spans multiple continents, with documented populations in Africa (Cameroon), Asia (Japan, South Korea), Europe, North America, Australia, and South America. As an annual grass, it completes its life cycle within a single growing season, reproducing via wind-dispersed seeds. The inflorescence typically bears silvery, shimmering spikelets that give the species its common name. Biological traits such as average lifespan, body dimensions, and dietary specifics follow typical patterns for annual grasses — drawing nutrients from soil through root absorption rather than consuming other organisms. The endangered status suggests populations may be declining due to habitat loss, land-use change, or invasive species pressure across parts of its range.

Leopard

ヒョウはアフリカ、中東、南アジアにかけて熱帯雨林から砂漠まで多様な生息地に分布する、ネコ科動物の中で最も広い地理的分布域を持つ種です。単独生活で主に夜行性であり、먹이を木の上にキャッシュする優れた登攀能力を持ちます。黒変個体であるクロヒョウは、密林個体群でよく見られます。世界的に危急種に分類されています。