anagallisaquatica

Anagallis aquatica, commonly known as water pimpernel, is an annual herbaceous plant belonging to the family Primulaceae. It is a small, delicate plant that typically grows in damp or aquatic environments. The plant is characterized by its creeping stems, which can reach lengths of up to 30 centimeters. Its leaves are small, oval-shaped, and arranged oppositely along the stem.

The flowers of Anagallis aquatica are typically pink or white, with five petals, and are solitary, arising from the leaf axils. They are small, measuring about 5 millimeters in diameter. The plant flowers from late spring to early autumn. Anagallis aquatica is found in a wide range of habitats, including ponds, ditches, slow-moving streams, and damp fields. It prefers areas with shallow, still water or waterlogged soil.

Native to Europe, North Africa, and parts of Asia, Anagallis aquatica has also been introduced to other regions. Its seed is dispersed by water and can remain viable for extended periods. The plant plays a role in its ecosystem by providing habitat and food for small aquatic invertebrates. While not widely cultivated, it can be found in some water gardens. The common name "water pimpernel" distinguishes it from its terrestrial relative, scarlet pimpernel (Anagallis arvensis).