Eragrostis is a large and widespread genus of plants in the grass family, found in many countries on all inhabited continents and many islands.
Oryza is a genus of plants in the grass family. It includes the major food crop rice. Members of the genus grow as tall, wetland grasses, growing to 1–2 metres (3–7 ft) tall; the genus includes both annual and perennial species.
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.
Alopecurus, or foxtail grass, is a common and widespread genus of plants in the grass family. It is common across temperate and subtropical parts of Eurasia, northern Africa, and the Americas, as well as naturalized in Australia and on various islands.
Aira is a genus of Old World plants in the grass family, native to western and southern Europe, central and southwest Asia, plus Africa.
Agropyron is a genus of Eurasian plants in the grass family), native to Europe and Asia but widely naturalized in North America.
Narthecium is a Eurasian and North American genus of herbaceous flowering plants. This genus was traditionally treated as belonging to the family Liliaceae, but the APG II system of 2003 placed it in the family Nartheciaceae.
Mercurialis is a genus of plants in the family Euphorbiaceae, the spurges, known commonly as the mercuries. These are slender herbs (forbs), rhizomatious perennials and woody perennials, native to Europe, North Africa, and Asia.
- Mercurialis annuaL. – most of Europe, North Africa, the Middle East, and islands of the eastern Atlantic
- Mercurialis canariensisObbard & S.A.Harris – Canary Islands
- Mercurialis corsicaCoss. & Kralik – Corsica, Sardinia
- Mercurialis ellipticaLam. – Spain, Portugal, Morocco
- Mercurialis huetiiHanry – Spain, France, Morocco
- Mercurialis leiocarpaSiebold & Zucc. – China, Japan, Korea, Ryukyu Islands, Thailand, Assam, Bhutan, Nepal
- Mercurialis × longifoliaLam. – Spain, Portugal, France (M. annua × M. tomentosa)
- Mercurialis ovataSternb. & Hoppe – C + E Europe and SW Asia from Germany + Italy to Russia + Syria
- Mercurialis × paxiiGraebn. – C + E Europe from Germany to Crimea (M. ovata × M. perennis)
- Mercurialis perennisL. – most of Europe plus Algeria, Caucasus, Turkey, Iran
- Mercurialis reverchoniiRouy – Spain, Morocco
- Mercurialis tomentosaL. – Spain, Portugal, France, Balearic Islands
Aegilops is a genus of Eurasian and North American plants in the grass family, Poaceae. They are known generally as goatgrasses. Some species are known as invasive weeds in parts of North America.
Hydrocharis is a genus of aquatic plants in the family Hydrocharitaceae described as a genus by Carl Linnaeus in 1753. It is widespread across much of Europe and Asia, plus a few scattered locations in Africa. It is also reportedly naturalized in parts of North America.
Holcus is a genus of African and Eurasian plants in the oat tribe within the grass family.
Anthemis arvensis, also known as corn chamomile, mayweed, scentless chamomile, or field chamomile is a species of flowering plant in the genus Anthemis, in the aster family. It is used as an ornamental plant.
Koeleria is a common and widespread genus of plants in the grass family, found on all continents except Antarctica and on various oceanic islands. It includes species known generally as Junegrasses.
Crypsis is a genus of African and Eurasian plants in the grass family, sometimes referred to as pricklegrass. These are annual grasses with short leaves. A few species are invasive weeds outside their native ranges.
Rostraria is a genus of plants in the grass family, native primarily to Eurasia and North Africa with one species native to South America. Hairgrass is a common name.
Eremopyrum is a genus Eurasian and North African plants in the grass family. One species, Eremopyrum triticeum has become widely established as a weed in parts of North America.
Castellia is a genus of African and Eurasian plants in the grass family. The only known species is Castellia tuberculosa, native to southern Europe, northern and northeastern Africa, and southwestern Asia.
Cutandia is a genus of Asian and Mediterranean plant in the grass family. It grows from Portugal and Cape Verde to Pakistan and Kazakhstan.
Hygroryza (watergrass) is a monotyipic genus of Asian flowering plants in the grass family. The only known species is Hygroryza aristata, native to China, Bangladesh, Cambodia, India, Laos, Malaysia, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, Vietnam.
Helictochloa is a genus of Eurasian, North African, and North American plants in the grass family.
