Common Crabgrass vs Green Sea Turtle

Digitaria ciliaris compared with Chelonia mydas

Key Differences

• Common Crabgrass is Not Evaluated while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Common Crabgrass	Green Sea Turtle
Kingdom	Plantae (bitki)	Animalia (hayvan)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Kordalılar)
Class	Liliopsida (Monocots)	Reptilia (Sürüngenler)
Order	Poales (Grasses)	Testudines (Kaplumbağa)
Family	Poaceae (Grass Family)	Cheloniidae (Sea Turtles)
Genus	Digitaria	Chelonia (Green Sea Turtles)
Species	Digitaria ciliaris	Chelonia mydas

Conservation Status

Common Crabgrass

NE — Not Evaluated

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Crabgrass

Habitat

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

Range

Widely distributed across Africa (8 countries), Asia (8 countries), Europe (18 countries), North America (10 countries), Oceania and the Pacific (12 countries), and South America (5 countries).

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.

Common Crabgrass

<em>Digitaria ciliaris</em>, commonly known as common crabgrass or southern crabgrass, is an annual grass in the family Poaceae. It has a near-cosmopolitan distribution, occurring across tropical, subtropical, and warm temperate regions on multiple continents. This species typically colonizes disturbed habitats including lawns, gardens, roadsides, cultivated fields, and waste ground, making it one of the most widespread grass weeds in the world. Common crabgrass spreads rapidly via its sprawling, branching stems that root at the nodes when they contact moist soil. It produces slender, finger-like racemes bearing small, paired spikelets. The species thrives in warm weather and full sun, declining with the onset of cooler autumn temperatures. While it is considered a troublesome weed in many agricultural and horticultural contexts, it also provides ground cover and food for various seed-eating birds. Biological traits of this species remain poorly documented in the scientific literature.

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.

Shared Countries

Both species can be found in 3 countries:

🇦🇺 Australia 🇧🇷 Brazil 🇲🇽 Mexico