Annual Knawel vs Green Sea Turtle

Scleranthus annuus compared with Chelonia mydas

Key Differences

• Annual Knawel is Near Threatened while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Annual Knawel	Green Sea Turtle
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Magnoliopsida (木兰纲)	Reptilia (爬行纲)
Order	Caryophyllales (石竹目)	Testudines (龟鳖目)
Family	Caryophyllaceae	Cheloniidae (Sea Turtles)
Genus	Scleranthus	Chelonia (Green Sea Turtles)
Species	Scleranthus annuus	Chelonia mydas

Conservation Status

Annual Knawel

NT — Near Threatened

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Annual Knawel	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Annual Knawel

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate grasslands and steppes, and flooded grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Georgia, India, Japan), Europe (13 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (Argentina, Chile, Colombia). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Green Sea Turtle

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

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Annual Knawel

The Annual Knawel (Scleranthus annuus) is a species in the genus Scleranthus. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate grasslands and steppes, and flooded grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Palearctic realms.

Green Sea Turtle

绿海龟是最大的海龟之一。其名称源于软骨和脂肪的绿色，而非龟壳的颜色。

Shared Countries

Both species can be found in 3 countries:

🇦🇺 Australia 🇨🇷 Costa Rica 🇲🇽 Mexico