Bay-rush vs Clusterspike False Indigo

Zamia integrifolia compared with Amorpha crenulata

Key Differences

• Bay-rush is Near Threatened while Clusterspike False Indigo is Critically Endangered.

Taxonomic Classification

Rank	Bay-rush	Clusterspike False Indigo
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Cycadopsida (Cycadopsida)	Magnoliopsida (Dicots)
Order	Cycadales (Cycadales)	Fabales (Legumes & Allies)
Family	Zamiaceae	Fabaceae
Genus	Zamia	Amorpha
Species	Zamia integrifolia	Amorpha crenulata

Evolutionary Relationship

Bay-rush and Clusterspike False Indigo share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Bay-rush

NT — Near Threatened

Clusterspike False Indigo

CR — Critically Endangered

Physical Characteristics

Attribute	Bay-rush	Clusterspike False Indigo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bay-rush

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Clusterspike False Indigo

Habitat

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

Bay-rush

The Bay-rush (Zamia integrifolia) is a species in the genus Zamia. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotrop

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.