Bad-smelling Alkanet vs common poisonrope

Alkanna maleolens compared with Strophanthus speciosus

Key Differences

• Bad-smelling Alkanet is Critically Endangered while common poisonrope is Least Concern.

Taxonomic Classification

Rank	Bad-smelling Alkanet	common poisonrope
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Boraginales (Boraginales)	Gentianales (Gentianales)
Family	Boraginaceae	Apocynaceae
Genus	Alkanna	Strophanthus
Species	Alkanna maleolens	Strophanthus speciosus

Evolutionary Relationship

Bad-smelling Alkanet and common poisonrope share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Bad-smelling Alkanet

CR — Critically Endangered

common poisonrope

LC — Least Concern

Physical Characteristics

Attribute	Bad-smelling Alkanet	common poisonrope
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bad-smelling Alkanet

Habitat

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

common poisonrope

Habitat

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

Bad-smelling Alkanet

The Bad-smelling Alkanet (Alkanna maleolens) is a species in the genus Alkanna. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

common poisonrope

<em>Strophanthus speciosus</em>, the common poisonrope, is a woody climbing vine in the family Apocynaceae, native to Africa. It is characterised by striking flowers with long, strap-like petal extensions or "tails" that dangle from the corolla, attracting specialist pollinators. Like other members of the genus Strophanthus, it produces toxic cardiac glycosides, particularly strophanthin, in its seeds, which have been used historically in the preparation of arrow poisons across various African cultures and have also been investigated for medicinal applications in cardiology. The species typically grows in forest margins, woodland edges, riverine scrub, and disturbed vegetation across its African range, where it uses supporting vegetation to climb towards the forest canopy. <em>Strophanthus speciosus</em> is assessed as Least Concern on the IUCN Red List, reflecting an adequate distribution across suitable African habitats. Detailed country-level distribution data are not fully compiled. Biological traits such as average vine lifespan, stem dimensions, body mass, and comprehensive dietary or physiological data remain poorly documented in the scientific literature. The species is of historical and ongoing pharmacological interest due to its cardenolide chemistry.