Argentine senna vs Coiled Cassia

Senna corymbosa compared with Senna circinnata

Taxonomic Classification

Rank	Argentine senna	Coiled Cassia
Kingdom same	Plantae (نباتات)	Plantae (نباتات)
Phylum same	Magnoliophyta (كاسيات البذور)	Magnoliophyta (كاسيات البذور)
Class same	Magnoliopsida (ماغنولانية)	Magnoliopsida (ماغنولانية)
Order same	Fabales (فوليات)	Fabales (فوليات)
Family same	Fabaceae	Fabaceae
Genus same	Senna	Senna
Species	Senna corymbosa	Senna circinnata

Evolutionary Relationship

Argentine senna and Coiled Cassia share a common ancestor at the Genus level: Senna.

Conservation Status

Argentine senna

LC — Least Concern

Coiled Cassia

LC — Least Concern

Physical Characteristics

Attribute	Argentine senna	Coiled Cassia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Argentine senna

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands spanning the Afrotropic and Palearctic realms.

Range

Widely distributed across Africa (Botswana, South Africa), Asia (India, Iraq), Europe (Portugal, Spain), North America (United States), Oceania and the Pacific (Australia), and South America (Brazil, Colombia).

Coiled Cassia

Habitat

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

Argentine senna

The Argentine senna, Senna corymbosa, is a species. It is currently assessed as least concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands spanning the Afrotropic and Palearctic realms.

Coiled Cassia

The Coiled Cassia (Senna circinnata) is a shrubby legume in the family Fabaceae, native to inland arid and semi-arid regions of Australia, particularly the mulga woodlands and shrublands of Queensland, New South Wales, South Australia, and the Northern Territory. The common name 'coiled cassia' refers to the distinctive spirally coiled seed pods that develop after flowering—a morphological feature unique among Australian Senna species and immediately recognisable in the field. Plants typically grow 0.5–2 metres tall, with pinnate leaves and bright yellow flowers characteristic of the genus Senna. Like other acacias and legumes in arid Australian landscapes, Senna circinnata contributes to nitrogen fixation in nutrient-poor desert soils through root nodule symbiosis with rhizobia bacteria, benefiting the broader plant community. The species is drought-tolerant and well-adapted to the seasonal rainfall and thin soils of inland Australia, regenerating vigorously after fire and disturbance. It is assessed as Least Concern by the IUCN given its stable populations across a wide extent of occurrence within Australia's arid interior. Coiled Cassia provides browse for kangaroos and other herbivores and cover for small reptiles and birds in shrubland habitats.