Black-stemmed Goldendrop vs Calamus

Onosma nigricaulis compared with Acorus calamus

Key Differences

• Black-stemmed Goldendrop is Critically Endangered while Calamus is Least Concern.

Taxonomic Classification

Rank	Black-stemmed Goldendrop	Calamus
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Magnoliopsida (Dicots)	Liliopsida (Monocots)
Order	Boraginales (Boraginales)	Acorales (Acorales)
Family	Boraginaceae	Acoraceae
Genus	Onosma	Acorus
Species	Onosma nigricaulis	Acorus calamus

Evolutionary Relationship

Black-stemmed Goldendrop and Calamus share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Black-stemmed Goldendrop

CR — Critically Endangered

Calamus

LC — Least Concern

Physical Characteristics

Attribute	Black-stemmed Goldendrop	Calamus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-stemmed Goldendrop

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Calamus

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (5 countries), Europe (30 countries), and North America (Canada, United States).

Black-stemmed Goldendrop

The Black-stemmed Goldendrop (Onosma nigricaulis) is a species in the genus Onosma. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Calamus

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