Colocynth vs Common Kidney-Vetch

Citrullus colocynthis compared with Anthyllis vulneraria

Key Differences

• Colocynth is Not Evaluated while Common Kidney-Vetch is Vulnerable.

Taxonomic Classification

Rank	Colocynth	Common Kidney-Vetch
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Cucurbitales (Cucurbitales)	Fabales (Legumes & Allies)
Family	Cucurbitaceae	Fabaceae
Genus	Citrullus	Anthyllis
Species	Citrullus colocynthis	Anthyllis vulneraria

Evolutionary Relationship

Colocynth and Common Kidney-Vetch share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Colocynth

NE — Not Evaluated

Common Kidney-Vetch

VU — Vulnerable

Physical Characteristics

Attribute	Colocynth	Common Kidney-Vetch
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colocynth

Habitat

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

Range

Widely distributed across Africa (Madagascar), Asia (Armenia, Turkey), Europe (7 countries), North America (Canada, United States), and Oceania and the Pacific (Australia).

Common Kidney-Vetch

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 Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Libya), Asia (Japan), Europe (9 countries), North America (Canada, United States), and Oceania and the Pacific (Australia). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Colocynth

<em>Citrullus colocynthis</em>, commonly known as Colocynth, is a plant species belonging to the genus <em>Citrullus</em> within the family Cucurbitaceae, the gourd family. This species has a remarkably broad geographic distribution, with documented occurrences across Africa, Asia, Europe, North America, and Oceania. Records include countries such as Madagascar in Africa, Armenia and Turkey in Asia, Bulgaria and Greece among other European nations, Canada and the United States in North America, and Australia in Oceania. Colocynth is a drought-tolerant perennial vine that typically grows in arid and semi-arid environments, including desert margins, sandy soils, and degraded lands. It produces small, round, bitter fruits historically used in traditional medicine across many cultures for their purgative properties. The species thrives in open, sunny habitats with well-drained soils. Its conservation status has not been formally assessed. As a plant, it produces energy through photosynthesis. Biological traits of this species remain poorly documented in the scientific literature. <em>Citrullus colocynthis</em> is recognized as a species of ethnobotanical and pharmacological interest.

Common Kidney-Vetch

Common Kidney-Vetch (<em>Anthyllis vulneraria</em>) is a flowering plant in the legume family Fabaceae, assessed as Vulnerable on the IUCN Red List due to habitat degradation and agricultural intensification across parts of its range. It is widely distributed across Africa (Libya), Asia (Japan), Europe (nine countries), North America (Canada and the United States), and Oceania (Australia), occupying six distinct biome types and occurring within the Indomalayan and Oceanian biogeographic realms. The species typically grows in dry, calcareous grasslands, coastal cliffs, sand dunes, and rocky slopes, often favoring nutrient-poor soils. It is an important larval food plant for certain butterfly species, particularly the Small Blue butterfly in Europe, and contributes to soil fertility through nitrogen fixation via root nodules. Its cheerful yellow, orange, or red flower heads make it a recognizable component of chalk and limestone grassland communities. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇦🇺 Australia 🇨🇦 Canada 🇸🇪 Sweden 🇺🇸 United States