Truth grasses come monocotyledonous plants (Class Liliopsida) in the Family Poaceae, as well referred to as Gramineae. There are astir 600 genera & perchance 10,000 mintage of grasses. These are guessed grasslands comprise 20% of the vegetation handle of the globe. This personal is a first of a lot plant families to person economies, including lawn & forage grasses, the staple food grains grown around the world, & bamboo, widely used for construction throughout Asia.

Grasses typically own a as punishment characteristics: Often hollow stems (called culms), plugged at intervals (the nodes). Leaves, arising at nodes, alternate, distichous (in of these plane) or even seldom turbinate, & parallel-veined. Leaves differentiated into the moo sheath hugging the stem for the few feet away & a blade sustaining margin normally stallion; the ligule (a membrane-forming appendage or even ring of hairs) lies at a junction between sheath & blade. Little, wind-pollinated flowers (called florets) sheathed within 2 glumes (bracts), lacking petals, & grouped into spikelets, these arranged around the panicle, raceme, spike, or head. Fruit that is a caryopsis.

Cultivation and uses
Agrarian grasses grown for human food production are known as cereals. Cereals be a major source of food energy for humans & mayhap a major source of protein, & include rice in South and Southeast Asia, maize in Central and South America, and wheat and barley in the Americas and North Eurasia. Numbers of more grasses come likewise grown for forage and fodder for animal food, particularly for sheep and cattle.

A select few unremarkably known grass plants come: maize wheat rice rye ryegrass sugarcane barley bamboo