Clusterspike False Indigo vs Common Coral Tree

Amorpha crenulata compared with Erythrina lysistemon

Key Differences

• Clusterspike False Indigo is Critically Endangered while Common Coral Tree is Least Concern.

Taxonomic Classification

Rank	Clusterspike False Indigo	Common Coral Tree
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Fabales (Legumes & Allies)	Fabales (Legumes & Allies)
Family same	Fabaceae	Fabaceae
Genus	Amorpha	Erythrina
Species	Amorpha crenulata	Erythrina lysistemon

Evolutionary Relationship

Clusterspike False Indigo and Common Coral Tree share a common ancestor at the Family level: Fabaceae.

Conservation Status

Clusterspike False Indigo

CR — Critically Endangered

Common Coral Tree

LC — Least Concern

Physical Characteristics

Attribute	Clusterspike False Indigo	Common Coral Tree
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 Coral Tree

Habitat

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

Range

Distributed across Portugal 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 Coral Tree

<em>Erythrina lysistemon</em>, commonly known as the common coral tree or lucky bean tree, is a medium to large deciduous tree in the family Fabaceae. Native to southern Africa, it is particularly characteristic of South Africa's woodlands, bushveld, and coastal forests, and has also been recorded in Portugal as an introduced species. The common coral tree is renowned for its spectacular scarlet tubular flowers, which appear before the leaves in late winter and spring and attract nectar-feeding birds, particularly sunbirds. Its seeds are bright red with a black spot and have been used in traditional jewelry and decoration. The tree produces compound leaves with three broadly ovate leaflets and is armed with sharp curved spines on its trunk and branches. It is assessed as Least Concern by the IUCN. Biological traits of this species remain poorly documented in the scientific literature.