Caldesia parnassifolia
Caldesia parnassifolia, also known as Parnassus water-plantain, is an aquatic perennial plant belonging to the Alismataceae family.
This species thrives in freshwater habitats, particularly in slow-moving or stagnant waters such as ponds, lakes, and marshes. The plant is characterized by its rosettes of basal leaves that are lance-shaped and long-petioled, typically emerging from submerged rhizomes.
During the flowering season, Caldesia parnassifolia produces small, white flowers arranged in spike-like inflorescences above the water surface. The flowers bloom in the summer and are a key feature in identifying the plant.
It is often found in temperate zones and can be a valuable part of the aquatic ecosystem, providing habitat for various invertebrates and aquatic species. However, it is sensitive to changes in water quality, such as pollution or eutrophication, and may face decline in areas where water ecosystems are threatened. Conservation efforts to protect freshwater environments are vital to maintaining the populations of this plant.