Agrostology (from Greek ἄγρωστις, agrōstis, "type of grass"; and -λογία, -logia), sometimes graminology, is the scientific study of grasses. It typically encompasses the true grasses (the family Poaceae), as well as the more grasslike species of the sedge family (Cyperaceae), the rush family (Juncaceae), and the bulrush or cattail family Typhaceae. Grasslike plants are also referred to as graminoids.
Agrostology has importance in the maintenance of wild and grazed grasslands, agriculture (crop plants such as rice, maize, sugarcane, and wheat are grasses, and many types of animal fodder are grasses), urban and environmental horticulture, turfgrass management and sod production, ecology, and conservation.