Ironwood is a common name for many woods or plants that have a reputation for hardness, or specifically a wood density that is heavier than water, although usage of the name ironwood in English may or may not indicate a tree that yields such heavy wood.
The Casuarinaceae are a family of dicotyledonous flowering plants placed in the order Fagales, consisting of four genera and 91 species of trees and shrubs native to eastern Africa, Australia, Southeast Asia, Malesia, Papuasia, and the Pacific Islands. At one time, all species were placed in the genus Casuarina. Lawrence Alexander Sidney Johnson separated out many of those species and renamed them into the new genera of Gymnostoma in 1980 and 1982, Allocasuarina in 1982, and Ceuthostoma in 1988, with some additional formal descriptions of new species in each other genus. At the time, it was somewhat controversial. The monophyly of these genera was later supported in a 2003 genetics study of the family. In the Wettstein system, this family was the only one placed in the order Verticillatae. Likewise, in the Engler, Cronquist, and Kubitzki systems, the Casuarinaceae were the only family placed in the order Casuarinales.
Allocasuarina is a genus of trees in the flowering plant family Casuarinaceae. They are endemic to Australia, occurring primarily in the south. Like the closely related genus Casuarina, they are commonly called sheoaks or she-oaks.
An oak is a tree or shrub in the genus Quercus in the plant family Fagaceae.
Casuarina is a genus of 17 tree species in the family Casuarinaceae, native to Australia, the Indian subcontinent, southeast Asia, islands of the western Pacific Ocean, and eastern Africa. It was once treated as the sole genus in the family, but has since been split into four genera.
Allocasuarina torulosa, the rose she-oak or forest oak, is a tree which grows in sub-rainforest of Queensland and New South Wales, Australia. There, it is typically found on coastal footslopes, hills, and plains. Originally described as Casuarina torulosa by William Aiton, it was moved to its current genus in 1982 by Australian botanist Lawrie Johnson. It is the type species of the genus Allocasuarina.
Allocasuarina humilis, commonly known as the dwarf sheoak or dwarf casuarina, is a woody shrub of the family Casuarinaceae endemic to the south-west of Western Australia.
Allocasuarina distyla, commonly known as scrub she-oak, is a shrub or small tree of the She-oak family Casuarinaceae endemic to New South Wales.
Allocasuarina luehmannii is a species of ironwood tree native to Australia and its wood is the hardest commercially available as measured by the Janka Hardness Scale.
Allocasuarina decaisneana or desert oak is a medium-sized, slow-growing tree found in the dry desert regions of the Northern Territory, South Australia and Western Australia. The Anangu peoples know the tree as kurkara.
Casuarina glauca, commonly known as the swamp she-oak, swamp oak, grey oak, or river oak, is a species of Casuarina native to the east coast of Australia. It is found from central Queensland south to southern New South Wales. It has become naturalised in the Everglades in Florida where it is considered a weed.
Bull oak is a common name for a number of species of Australian trees. Some of the species involved are:
Allocasuarina verticillata, commonly known as drooping she-oak or drooping sheoak, is a nitrogen fixing native tree of southeastern Australia.
Swamp she-oak is a common name for several plants and may refer to:
Allocasuarina inophloia, also known as woolly oak, or stringybark she-oak, is a shrub or small tree of the she-oak family Casuarinaceae endemic to inland New South Wales and Queensland. The hairy bark is an unusual feature.
Allocasuarina campestris, commonly known as the Shrubby she-oak, is a shrub of the she-oak family Casuarinaceae native to Western Australia.
Allocasuarina decussata, commonly known as karri oak or karri she-oak, is a medium-sized tree, or more rarely a shrub, that is endemic to the south west of Western Australia. It is an understory tree in karri forest but also occurs as a stunted shrub in places like Bluff Knoll in the Stirling Range.
Allocasuarina striata, commonly known as the small bull oak, stalked oak-bush or the tall oak-bush, is a shrub of the genus Allocasuarina native to South Australia.
Allocasuarina pusilla, commonly known as the heath oak-bush or the dwarf she-oak, is a species of Allocasuarina genera native to Australia.
