This annual plant with a broadly Mediterranean distribution is present in all regions of Central, Southern and Insular Italy, in Liguria, Veneto and Emilia-Romagna. It grows in wet meadows and along the shores of rivers, from sea level to the lower montane belt. It is a characteristic species of Mediterranean temporary ponds; in Sardinia it appears sporadically in the intermediate belt of the temporary ponds. The genus name derives from the Greek 'lotos' and the Latin 'lotus', designating different Fabaceae or edible forage, including clover and sweet clover; the species name in Latin means 'very narrow'. Flowering period: April to June.

Italian name(s): Ginestrino angustissimo (Italia), Loto angustissimo (Italia).