Beech Tarcrust vs Clusterspike False Indigo

Biscogniauxia nummularia compared with Amorpha crenulata

Key Differences

• Beech Tarcrust is Data Deficient while Clusterspike False Indigo is Critically Endangered.

Taxonomic Classification

Rank	Beech Tarcrust	Clusterspike False Indigo
Kingdom	Fungi (菌界)	Plantae (植物)
Phylum	Ascomycota (子嚢菌門)	Magnoliophyta (被子植物門)
Class	Sordariomycetes (フンタマカビ綱)	Magnoliopsida (モクレン綱)
Order	Xylariales (マメザヤタケ目)	Fabales (マメ目)
Family	Graphostromataceae	Fabaceae
Genus	Biscogniauxia	Amorpha
Species	Biscogniauxia nummularia	Amorpha crenulata

Conservation Status

Beech Tarcrust

DD — Data Deficient

Clusterspike False Indigo

CR — Critically Endangered

Physical Characteristics

Attribute	Beech Tarcrust	Clusterspike False Indigo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Tarcrust

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), and South America (Brazil).

Clusterspike False Indigo

Habitat

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

Beech Tarcrust

The Beech Tarcrust (Biscogniauxia nummularia) is a species in the genus Biscogniauxia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

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.