Gastridium ventricosum is a species of grass known by the common name nit-grass (British Isles) or nit grass (USA). This is an annual grass bearing a long, thin, smooth inflorescence of spikelets. It is native to Europe, North Africa, and southwestern Asia but has become naturalized in scattered locations elsewhere.Kew World Checklist of Selected Plant FamiliesJepson Manual TreatmentAltervista Flora Italiana, Codino maggiore, Nit Grass, Gastridium ventricosum (Gouan) Schinz & Thell.
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