Temporal range: Early Cretaceous[1] - recent, Barremian–0
Meadow Foxtail head.jpg
Flowering head of meadow foxtail (Alopecurus pratensis), with stamens exerted at anthesis
Scientific classification edit
Clade:Graminid clade
Type genus

Gramineae Juss.

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,[4] Poaceae are the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae.[5]

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.[6] 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 forage, building materials (bamboo, thatch, straw) and fuel (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.


The name Poaceae was given by John Hendley Barnhart in 1895,[7]:7 based on the tribe Poeae described in 1814 by Robert Brown, and the type genus Poa described in 1753 by Carl Linnaeus. The term is derived from the Ancient Greek πόα (póa, “fodder”).

Other Languages
Alemannisch: Süßgräser
العربية: نجيلية
asturianu: Poaceae
azərbaycanca: Qırtıckimilər
Bân-lâm-gú: Hô-pún-kho
беларуская: Метлюжковыя
беларуская (тарашкевіца)‎: Метлюжковыя
български: Житни
bosanski: Poaceae
català: Poàcies
Cebuano: Poaceae
čeština: Lipnicovité
Cymraeg: Poaceae
Deutsch: Süßgräser
Ελληνικά: Αγρωστώδη
español: Poaceae
Esperanto: Poacoj
euskara: Poaceae
فارسی: گندمیان
français: Poaceae
Frysk: Gerzen
galego: Gramíneas
한국어: 벼과
հայերեն: Հացազգիներ
हिन्दी: पोएसी
hornjoserbsce: Słódke trawy
hrvatski: Trave
Bahasa Indonesia: Poaceae
íslenska: Grasaætt
italiano: Poaceae
עברית: דגניים
Basa Jawa: Poaceae
Latina: Poaceae
lietuvių: Migliniai
Limburgs: Graas
lumbaart: Poaceae
magyar: Perjefélék
македонски: Треви
മലയാളം: പൊവേസീ
မြန်မာဘာသာ: မြက်
Nāhuatl: Zacatl
Nederlands: Grassenfamilie
Nedersaksies: Grezenfemilie
日本語: イネ科
Nordfriisk: Swetgäärs
norsk nynorsk: Grasfamilien
occitan: Poaceae
oʻzbekcha/ўзбекча: Bugʻdoydoshlar
پنجابی: گھآ
português: Poaceae
română: Poaceae
русский: Злаки
Scots: Poaceae
shqip: Poaceae
Simple English: Poaceae
slovenčina: Lipnicovité
slovenščina: Trave
српски / srpski: Poaceae
srpskohrvatski / српскохрватски: Poaceae
Basa Sunda: Poaceae
svenska: Gräs
Tagalog: Poaceae
தமிழ்: பொவேசி
татарча/tatarça: Кыяклылар
తెలుగు: పోయేసి
ไทย: หญ้า
lea faka-Tonga: Mohuku
Türkçe: Buğdaygiller
українська: Тонконогові
Tiếng Việt: Họ Hòa thảo
West-Vlams: Grasfamilie
Winaray: Poaceae
ייִדיש: גראז
粵語: 禾本科
Zeêuws: Gors
žemaitėška: Varpėnē augalā
中文: 禾本科