Metrosideros is a genus of approximately 60 trees, shrubs, and vines mostly found in the Pacific region in the family Myrtaceae. Most of the tree forms are small, but some are exceptionally large, the New Zealand species in particular. The name derives from the Ancient Greek metra or "heartwood" and sideron or "iron". Perhaps the best-known species are the pōhutukawa, northern rātā, and southern rātā of New Zealand, and ʻōhiʻa lehua,, from the Hawaiian Islands.
Nothofagus, also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America and Australasia. The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America. In the past, they were included in the family Fagaceae, but genetic tests revealed them to be genetically distinct, and they are now included in their own family, the Nothofagaceae.
Cordyline is a genus of about 15 species of woody monocotyledonous flowering plants in family Asparagaceae, subfamily Lomandroideae. The subfamily has previously been treated as a separate family Laxmanniaceae, or Lomandraceae. Other authors have placed the genus in the Agavaceae. Cordyline is native to the western Pacific Ocean region, from New Zealand, eastern Australia, southeastern Asia and Polynesia, with one species found in southeastern South America.
Muehlenbeckia or maidenhair is a genus of flowering plants in the family Polygonaceae. It is native to the borders of the Pacific, including South and North America, Papua New Guinea and Australasia. It has been introduced elsewhere, including Europe. Species vary in their growth habits, many being vines or shrubs. In some environments, rampant species can become weedy and difficult to eradicate.
Cenchrus is a widespread genus of plants in the grass family. Its species are native to many countries in Asia, Africa, Australia, the Americas, and various oceanic islands.
Ehrharta is a genus of plants in the grass family.
Deschampsia is a genus of plants in the grass family, commonly known as hair grass or tussock grass. The genus is widespread across many countries.
Centrolepis is a genus of small herbaceous plants in the family Restionaceae known as thorn grass scales, with about 25 species native to Australia, New Zealand, New Guinea, and south-east Asia as far north as Hainan Dao. APG III system classifies this genus in the Centrolepidaceae family.
Anthoxanthum, commonly known as hornworts, vernal grasses, or vernalgrasses, is a genus of plants in the grass family.
Dianella is a genus of about forty species of flowering plants in the monocot family Asphodelaceae and are commonly known as flax lilies. Plants in this genus are tufted herbs with more or less linear leaves and bisexual flowers with three sepals more or less similar to three petals and a superior ovary, the fruit a berry. They occur in Africa, South-east Asia, the Pacific Islands, New Zealand and Australia.
Gahnia is a genus of sedges native to China, Southeast Asia, New Guinea, Australia, New Zealand and a number of Pacific Islands. The common name is due to the toothed margins. It often forms tussocks.
Astelia is a genus of flowering plants in the recently named family Asteliaceae. They are rhizomatous tufted perennials native to various islands in the Pacific, Indian, and South Atlantic Oceans, as well as to Australia and to the southernmost tip of South America. A significant number of the known species are endemic to New Zealand. The species generally grow in forests, swamps and amongst low alpine vegetation; occasionally they are epiphytic.
Austrofestuca, called beach fescue, is a genus of Australian and New Zealand plants in the grass family. The only accepted species is Austrofestuca littoralis, native to seacoast regions in Australia and New Zealand.
Amphibromus is a genus of grasses in the family Poaceae. Most are known as swamp wallaby grass. Most are endemic to Australia. One can also be found in New Zealand and there are two species in South America.
Dichanthium, known commonly as bluestem or bluegrass, is a genus of African, Asian, and Australian plants in the grass family.
Dichelachne is a genus of Australian, Indonesian, and Pacific Island plants in the grass family. They are known commonly as plumegrasses.
Lachnagrostis is a genus of African, Australian, Pacific Island, and South American plants in the grass family. They are often treated as members of genus Agrostis.
Bothriochloa macra, commonly known as red-leg grass, red grass, redleg or pitted beard grass is a perennial grass species that is native to eastern Australia and New Zealand. It is naturalised in Tasmania and Norfolk Island.
Thinopyrum is a genus of Eurasian and African plants in the grass family.
Stenostachys is a genus of plants in the grass family, found only in New Zealand. It is sometimes included in the genus Elymus.
