This aquatic plant with a sub-Atlantic distribution, is present, with two subspecies, in Tuscany, Lazio, Sardinia and Sicily (not found since a long time in Campania); the species seems to be in decline, probably due to the general eutrophication of the waters. It grows in ponds and stagnant waters, from sea level to about 500 m. In Sardinia it has been reported from a single temporary pond in the National Park Arcipelago di La Maddalena. The genus name derives from Greek and means 'beautiful hairs', alluding to the thin stems; the species name refers to the leaves, which are often truncated at apex. Flowering period: March to May. |
