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northern water-starwort
Scientific Name: Callitriche hermaphroditica
Family: Callitrichaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names: NY (autumnal water-starwort)
Water Starwort (Callitriche hermaphroditica)
Water Starwort, also known as Northern Water-starwort or Autumnal Water-starwort, is an aquatic herb belonging to the family Callitrichaceae. Several species exist, each with varying characteristics and habitats.
Considerations for Pets
- Water starwort leaves are bright green, egg-shaped, and float on the water's surface. While their soft texture may not pose a significant risk, it is prudent to prevent pets from ingesting large quantities of any plant material.
Taxonomy and Nomenclature
- Scientific Name: Callitriche hermaphroditica L.
- Family: Callitrichaceae
- Synonyms: Callitriche autumnalis, Callitriche fassettii
- Other Common Names: Northern Water-starwort, Autumnal Water-starwort, Narrow-leaf Water Starwort, Autumn Waterstarwort, Scarlet Waterstarwort, Twoheaded Water Starwort, Greater Water Starwort.
Distribution and Habitat
- Water Starwort is commonly found in quiet, fresh waters.
- It is described as a native plant in most parts of mainland Europe and in northern Africa.
- Several species within the Callitriche genus are found in the Arctic.
Morphological Characteristics and Growth Habits
- Water Starwort is an aquatic herb.
- It features bright green, egg-shaped leaves that float on the surface of the water.
- Stems can grow up to 60 cm long. Submerged leaves are narrowly elliptical, while floating leaves are often in a rosette.
- It can form dense mats at the surface of the water.
Ecological Role
- It can form dense mats at the surface of the water.
Further Resources
- USDA-NRCS PLANTS Database
- RHS (Royal Horticultural Society)
- Northern Ireland Environment Agency