This annual grass with a strictly Mediterranean distribution is present in Lazio, Molise, Sardinia and Sicily. The life-cycle can be spent part in water, part on moist to dry soil. It grows in moist environments, especially at the edges of ponds, on muddy soils, from sea level to about 1300 m. In Sardinia the species is found exclusively in the Mediterranean temporary ponds; it is not very common, but where present, it forms dense populations that occupy large areas subject to long-lasting flooding. The genus is dedicated to O. Antinori (1811-1882) of Perugia, naturalist and explorer of Africa; the species name refers to the distribution, which is largely limited to two islands, Sicily and Sardinia. Flowering period: June to July. |
