Poaceae Poaceae Poaceae () or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses, commonly referred to collectively as grass. Poaceae includes the cereal grasses, bamboos and the grasses of natural grassland and cultivated lawns and pasture. Grasses have stems that are hollow except at the nodes and narrow alternate leaves borne in two ranks. The lower part of each leaf encloses the stem, forming a leaf-sheath. With around 780 genera and around 12,000 species, Poaceae are the fifth-largest , following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae. Grasslands such as savannah and prairie where grasses
Less-is-better effect right next to each other, the effect disappears, as people see the true value of both," states one source. "It's just the gifts in isolation that give people a flipped sense of happiness and gratitude." Theoretical causes of the less-is-better effect include: The effect has several practical applications. If a conference speaker thinks that about 50 people will attend his talk, but wants to make it look popular, he should hold it in a small room, with 50 or fewer seats, than a large room with over 100 seats. A chocolatier is better off selling a box containing 24 pieces