Gastridium is a small but widespread genus of African and Eurasian plants in the grass family. These grasses are sometimes called nit grass. Species 1. \n* Gastridium phleoides (Nees & Meyen) C.E.Hubb. - Africa, southern Europe, Middle East, Arabian Peninsula 2. \n* Gastridium ventricosum (Gouan) Schinz & Thell - Mediterranean and nearby regions from Great Britain to Cape Verde to Caucasus formerly included see Triplachne \n* Gastridium littorale - Triplachne nitens \n* Gastridium nitens - Triplachne nitens \n* Gastridium triaristatum - Triplachne nitens