poaceae | class | monocotyledon <tsp> poaceae | order | commelinids <tsp> ardmore_airport_(new_zealand) | 2nd_runway_surfacetype | poaceae <sep> poaceae () or gramineae ()  is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses it includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture the latter are commonly referred to collectively as grass with around 780 genera and around 12,000 species, the poaceae is the fifth-largest plant family, following the asteraceae, orchidaceae, fabaceae and rubiaceaethe poaceae are the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, rice, barley, and millet as well as feed for meat-producing animals they provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 55%, and other grains 6% 
poaceae is in the class monocotyledon and the order of commelinids. it is also the surface type of the second runway of ardmore airport. new zealand.monocotyledon poaceae () or gramineae () is a large and nearly ubiquitous family of grasses