California alder vs Rough Stonewort

Alnus rhombifolia compared with Chara aspera

Key Differences

• California alder is Least Concern while Rough Stonewort is Near Threatened.

Taxonomic Classification

Rank	California alder	Rough Stonewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Charophyta (Charophyta)
Class	Magnoliopsida (Dicots)	Charophyceae (Charophyceae)
Order	Fagales (Beeches & Oaks)	Charales (Charales)
Family	Betulaceae	Characeae
Genus	Alnus	Chara
Species	Alnus rhombifolia	Chara aspera

Evolutionary Relationship

California alder and Rough Stonewort share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

California alder

LC — Least Concern

Rough Stonewort

NT — Near Threatened

Physical Characteristics

Attribute	California alder	Rough Stonewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

California alder

Habitat

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

Range

Found in Canada.

Rough Stonewort

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.