Common Silver Hairgrass vs 黃冠亞馬遜鸚哥

Aira caryophyllea compared with Amazona ochrocephala

Key Differences

• Common Silver Hairgrass is Endangered while 黃冠亞馬遜鸚哥 is Least Concern.

Taxonomic Classification

Rank	Common Silver Hairgrass	黃冠亞馬遜鸚哥
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Liliopsida (百合纲)	Aves (鳥綱)
Order	Poales (禾本目)	Psittaciformes (鹦形目)
Family	Poaceae (Grass Family)	Psittacidae (True Parrots)
Genus	Aira	Amazona
Species	Aira caryophyllea	Amazona ochrocephala

Conservation Status

Common Silver Hairgrass

EN — Endangered

黃冠亞馬遜鸚哥

LC — Least Concern

Physical Characteristics

Attribute	Common Silver Hairgrass	黃冠亞馬遜鸚哥
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.

黃冠亞馬遜鸚哥

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (Barbados, United States), and South America (Colombia, Ecuador, Venezuela).

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.

黃冠亞馬遜鸚哥

黄冠亚马逊鹦鹉（Amazona ochrocephala）是分布于从墨西哥、巴拿马到秘鲁、巴西广大地区的大型亚马逊鹦鹉。栖息于茂密的热带森林、干燥林地和红树林，因善于学习说话而闻名，是受欢迎的宠物鸟。野生种群因栖息地破坏和捕捉而减少，IUCN将其列为无危（LC）物种。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇺🇸 United States