Avena is a genus of Eurasian and African plants in the grass family. Collectively known as the oats, they include some species which have been cultivated for thousands of years as a food source for humans and livestock. They are widespread throughout Europe, Asia and northwest Africa. Several species have become naturalized in many parts of the world, and are regarded as invasive weeds where they compete with crop production. All oats have edible seeds, though they are small and hard to harvest in most species.
Arrhenatherum, commonly called oatgrass or button-grass, is a genus of Eurasian and North African plants in grass family.
Aira is a genus of Old World plants in the grass family, native to western and southern Europe, central and southwest Asia, plus Africa.
Holcus is a genus of African and Eurasian plants in the oat tribe within the grass family.
Anthoxanthum, commonly known as hornworts, vernal grasses, or vernalgrasses, is a genus of plants in the grass family.
Phleum (timothy) is a genus of annual and perennial plants in the grass family. The genus is native to Europe, Asia and north Africa, with one species also in North and South America.
Brachypodium is a genus of plants in the grass family, widespread across much of Africa, Eurasia, and Latin America. It is classified in its own tribe Brachypodieae.
Epipactis helleborine, the broad-leaved helleborine, is a terrestrial species of orchid with a broad distribution. It is a long lived herb which varies morphologically with ability to self-pollinate.
Vulpia is a widespread genus of plants in the grass family, native to many countries around the world and naturalized in many of the nations to which it is not native. It is most common in temperate regions.
Puccinellia is a genus of plants in the grass family, known as alkali grass or salt grass.
Ampelodesmos is a genus of Mediterranean plants in the grass family, which is known by the common names stramma, Mauritania grass, rope grass, and dis(s) grass. It is classified in its own tribe Ampelodesmeae within the grass subfamily Pooideae.
Apera is a small genus of annual grasses, known commonly as silkybent grass or windgrass. They are native to Europe, North Africa and parts of Asia but have been introduced and naturalized in much of North and South America.
Aeluropus is a genus of Eurasian and African plants in the grass family, found primarily in desert regions.
Airopsis is a genus of southern European and northern African plants in the grass family.
Ammochloa is a genus of Mediterranean plants in the grass family, Poaceae.
Catabrosa is a small but widespread genus of plants in the grass family native to temperate areas of Eurasia, the Americas, and a few places in Africa.
Chaetopogon is a genus of European plants in the grass family.
Avellinia is a genus of Mediterranean plants in the grass family. The only known species is Avellinia festucoides, found throughout much of the Mediterranean Region from Portugal and Morocco to Turkey. It is also reportedly naturalized in Australia.
Milium is a genus of Eurasian, North American, and North African plants in the grass family.
Helictochloa is a genus of Eurasian, North African, and North American plants in the grass family.
