Commen Water-Starwort vs Intermediate Water-Starwort

Callitriche stagnalis compared with Callitriche hamulata

Taxonomic Classification

Rank	Commen Water-Starwort	Intermediate Water-Starwort
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (พืชใบเลี้ยงคู่)	Magnoliopsida (พืชใบเลี้ยงคู่)
Order same	Lamiales (อันดับกะเพรา)	Lamiales (อันดับกะเพรา)
Family same	Plantaginaceae	Plantaginaceae
Genus same	Callitriche	Callitriche
Species	Callitriche stagnalis	Callitriche hamulata

Evolutionary Relationship

Commen Water-Starwort and Intermediate Water-Starwort share a common ancestor at the Genus level: Callitriche.

Conservation Status

Commen Water-Starwort

LC — Least Concern

Intermediate Water-Starwort

LC — Least Concern

Physical Characteristics

Attribute	Commen Water-Starwort	Intermediate Water-Starwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Commen Water-Starwort

Habitat

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

Range

Widely distributed across Asia (Japan), Europe (7 countries), North America (Canada, United States), and Oceania and the Pacific (Australia).

Intermediate Water-Starwort

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

Commen Water-Starwort

<em>Callitriche stagnalis</em>, commonly known as Common Water-Starwort, is an aquatic or semi-aquatic plant in the family Plantaginaceae. This species holds a Least Concern conservation status and is broadly distributed across Asia, Europe, North America, and Oceania, reflecting its wide ecological tolerance. It typically grows in diverse terrestrial and aquatic habitats, including ponds, streams, ditches, and wet meadows, often forming dense mats on the water surface or in shallow, slow-moving water. The leaves of Common Water-Starwort are typically small and arranged in rosettes at the water surface, allowing efficient access to light, while submerged leaves are often narrower and linear. This plant thrives in nutrient-rich, still or slowly flowing freshwater environments and can colonize temporarily flooded habitats. It provides important ecological services as habitat and food for aquatic invertebrates and small vertebrates. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden