Castor vs

Ricinus communis compared with Comatricha nigra

Taxonomic Classification

Rank	Castor
Kingdom	Plantae (Plants)	Protozoa (protozoa)
Phylum	Magnoliophyta (Flowering Plants)	Mycetozoa
Class	Magnoliopsida (Dicots)	Myxomycetes (Myxomycetes)
Order	Malpighiales (Malpighiales)	Stemonitidales
Family	Euphorbiaceae	Stemonitidaceae
Genus	Ricinus	Comatricha
Species	Ricinus communis	Comatricha nigra

Conservation Status

Castor

NE — Not Evaluated

NE — Not Evaluated

Physical Characteristics

Attribute	Castor
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Castor

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (33 countries), Asia (26 countries), Europe (23 countries), North America (15 countries), Oceania and the Pacific (14 countries), and South America (12 countries).

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (Belgium, Norway, Sweden), North America (United States), and South America (Brazil).

Castor

The Castor (Ricinus communis) is a species in the genus Ricinus. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and hi

<em>Comatricha nigra</em> is among the more widely distributed species in the genus <em>Comatricha</em>, with documented records from Asia, Europe, North America, and South America. It belongs to the class Myxomycetes, order Stemonitidales, and is recognized by its dark, stalked sporangia with a distinctive capillitium. The species grows on decaying wood, bark, and moist plant debris in forest habitats across its broad geographic range. As with all plasmodial slime molds, <em>C. nigra</em> undergoes a life cycle that includes a motile plasmodial feeding stage and a reproductive sporangial stage. The feeding plasmodium consumes bacteria, fungal spores, and organic particles, playing a role in nutrient cycling and decomposition. The global distribution of <em>C. nigra</em> reflects the capacity of slime mold spores to disperse over long distances via wind currents. No quantitative biological metrics are recorded, and the species has not been assessed by the IUCN.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇧🇷 Brazil 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States