Grass | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-05

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Poaceae


00:01:54 1 Etymology
00:02:22 2 Evolutionary history
00:04:37 3 Description
00:06:43 4 Growth and development
00:08:22 5 Distribution
00:08:44 6 Ecology
00:10:19 7 Taxonomy
00:11:45 8 Uses
00:12:31 8.1 Food production
00:14:00 8.2 Industry
00:14:59 8.3 Lawn and ornamental use
00:15:52 8.4 Sports turf
00:16:37 8.4.1 Cricket
00:16:58 8.4.2 Golf
00:17:37 8.4.3 Tennis
00:18:21 8.5 Economically important grasses
00:18:31 9 Role in society
00:20:39 10 In popular culture
00:21:41 11 Image gallery
00:21:49 12 See also



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SUMMARY
=======
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. 
The Poaceae are the most important source the world's dietary energy supply. They provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 5.5%, and others grains 6%.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 plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae.Grasslands such as savannah and prairie where grasses are dominant are estimated to constitute 40.5% of the land area of the Earth, excluding Greenland and Antarctica. Grasses are also an important part of the vegetation in many other habitats, including wetlands, forests and tundra.
The 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 are used as building materials bamboo, thatch, and straw. They are a source of biofuel primarily the conversion of maize to ethanol.
Though they are commonly called "grasses", seagrasses, rushes, and sedges fall outside this family. The rushes and sedges are related to the Poaceae, being members of the order Poales, but the seagrasses are members of order Alismatales.