Ajuga vs Jerusalem thorn

Ajuga reptans compared with Parkinsonia aculeata

Key Differences

• Ajuga is Endangered while Jerusalem thorn is Least Concern.

Taxonomic Classification

Rank	Ajuga	Jerusalem thorn
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Lamiales (Lamiales)	Fabales (Legumes & Allies)
Family	Lamiaceae	Fabaceae
Genus	Ajuga	Parkinsonia
Species	Ajuga reptans	Parkinsonia aculeata

Evolutionary Relationship

Ajuga and Jerusalem thorn share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Ajuga

EN — Endangered

Jerusalem thorn

LC — Least Concern

Physical Characteristics

Attribute	Ajuga	Jerusalem thorn
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ajuga

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Brazil, Colombia). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Jerusalem thorn

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

Range

Widely distributed across Africa (33 countries), Asia (16 countries), Europe (4 countries), North America (8 countries), Oceania and the Pacific (Australia, Micronesia), and South America (Brazil, Chile, Colombia).

Ajuga

The Ajuga (Ajuga reptans) is a species in the genus Ajuga. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 11 distinct biome types. Populations are also found in montane and highland environment.

Shared Countries

Both species can be found in 6 countries:

🇦🇺 Australia 🇧🇷 Brazil 🇨🇴 Colombia 🇵🇹 Portugal 🇿🇦 South Africa 🇺🇸 United States