flat-leaved scalewort vs Holt's Scalewort

Radula complanata compared with Radula holtii

Key Differences

• flat-leaved scalewort is Least Concern while Holt's Scalewort is Near Threatened.

Taxonomic Classification

Rank	flat-leaved scalewort	Holt's Scalewort
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Marchantiophyta (地钱门)	Marchantiophyta (地钱门)
Class same	Jungermanniopsida (叶苔纲)	Jungermanniopsida (叶苔纲)
Order same	Porellales (光萼苔目)	Porellales (光萼苔目)
Family same	Radulaceae	Radulaceae
Genus same	Radula	Radula
Species	Radula complanata	Radula holtii

Evolutionary Relationship

flat-leaved scalewort and Holt's Scalewort share a common ancestor at the Genus level: Radula.

Conservation Status

flat-leaved scalewort

LC — Least Concern

Holt's Scalewort

NT — Near Threatened

Physical Characteristics

Attribute	flat-leaved scalewort	Holt's Scalewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

flat-leaved scalewort

Habitat

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

Range

Found across Europe (6 countries) and North America (United States).

Holt's Scalewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Portugal. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇵🇹 Portugal