Black Bent vs Common comfrey

Agrostis gigantea compared with Symphytum officinale

Taxonomic Classification

Rank	Black Bent	Common comfrey
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Liliopsida (Monocots)	Magnoliopsida (Dicots)
Order	Poales (Grasses)	Boraginales (Boraginales)
Family	Poaceae (Grass Family)	Boraginaceae
Genus	Agrostis	Symphytum
Species	Agrostis gigantea	Symphytum officinale

Evolutionary Relationship

Black Bent and Common comfrey share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Black Bent

LC — Least Concern

Common comfrey

LC — Least Concern

Physical Characteristics

Attribute	Black Bent	Common comfrey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Bent

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (11 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (5 countries).

Common comfrey

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 6 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (4 countries), Europe (9 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Colombia, Peru).

Black Bent

The Black Bent (Agrostis gigantea) is a species in the genus Agrostis. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Common comfrey

<em>Symphytum officinale</em>, commonly known as common comfrey, is a perennial herbaceous plant in the family Boraginaceae. It is native to Europe and parts of Asia and has been naturalized across North America, Oceania, and South America. Common comfrey typically grows in moist, nutrient-rich habitats including riverbanks, ditches, floodplain meadows, and woodland margins. The plant produces large, lance-shaped leaves covered in coarse hairs and bears drooping clusters of tubular flowers that range from pale purple to white. It has a long history of medicinal use, particularly for wound healing and bone repair, due to the presence of allantoin in its tissues. However, it also contains pyrrolizidine alkaloids that can be toxic in high doses. The species is assessed as Least Concern by the IUCN. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 12 countries:

🇦🇺 Australia 🇧🇪 Belgium 🇨🇦 Canada 🇨🇴 Colombia 🇩🇰 Denmark 🇫🇮 Finland 🇫🇷 France 🇮🇸 Iceland 🇯🇵 Japan 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States