Clusterspike False Indigo vs common bee-brush

Amorpha crenulata compared with Aloysia gratissima

Key Differences

• Clusterspike False Indigo is Critically Endangered while common bee-brush is Not Evaluated.

Taxonomic Classification

Rank	Clusterspike False Indigo	common bee-brush
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Fabales (Legumes & Allies)	Lamiales (Lamiales)
Family	Fabaceae	Verbenaceae
Genus	Amorpha	Aloysia
Species	Amorpha crenulata	Aloysia gratissima

Evolutionary Relationship

Clusterspike False Indigo and common bee-brush share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Clusterspike False Indigo

CR — Critically Endangered

common bee-brush

NE — Not Evaluated

Physical Characteristics

Attribute	Clusterspike False Indigo	common bee-brush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clusterspike False Indigo

Habitat

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

common bee-brush

Habitat

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

Range

Distributed across Brazil and South Africa.

Clusterspike False Indigo

Amorpha crenulata, known as clusterspike false indigo or crenulate lead plant, is a critically endangered flowering shrub in the family Fabaceae with a highly restricted distribution confined to Miami-Dade County in southern Florida, USA. This species represents one of North America's rarest plants, with remaining populations numbering in the hundreds of individuals occurring in pine rockland habitat, an ecosystem itself ranked among the most imperiled in the United States. Pine rocklands are fire-dependent communities on exposed oolitic limestone, characterized by an open canopy of slash pine over diverse understory, and have been reduced to less than two percent of their historical extent by urban development in the Miami metropolitan area. Amorpha crenulata produces elongated spikes of small purple flowers typical of the genus and was historically more widespread across the Miami Rock Ridge before land development eliminated most habitat. Current populations exist primarily within Everglades National Park and a few private preserves. Its Critically Endangered status reflects the tiny remaining population, extreme habitat restriction, ongoing threats from urbanization, altered fire regimes, and sea-level rise that threatens low-elevation limestone habitats. Conservation efforts focus on habitat protection, controlled burning to maintain pine rockland structure, and ex situ seed banking.

common bee-brush

Common bee brush (<em>Aloysia gratissima</em>) is a flowering shrub native to a diverse range of terrestrial tropical and temperate habitats. Its documented range includes Brazil and South Africa, reflecting a disjunct distribution across the Southern Hemisphere. The plant is a member of the family Verbenaceae and is known for its small, fragrant white flowers that attract bees and other pollinators, lending it the common name bee brush. <em>Aloysia gratissima</em> typically grows in open scrublands, forest margins, and disturbed areas, often tolerating poor soils and variable moisture conditions. Its aromatic foliage has been used in traditional medicine and as a flavoring agent in certain regions. The species is generally drought-tolerant and may form dense thickets in suitable environments. Biological traits of this species remain poorly documented in the scientific literature.