The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with about 4,250 known species spread across 124 genera, making it the 14th most species-rich family of flowering plants. The many well known and economically important members of the Ericaceae include the cranberry, blueberry, huckleberry, rhododendron, and various common heaths and heathers.
The Fagales are an order of flowering plants, including some of the best-known trees. The order name is derived from genus Fagus, beeches. They belong among the rosid group of dicotyledons. The families and genera currently included are as follows:
Betulaceae, the birch family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams, hazel-hornbeam, and hop-hornbeams numbering a total of 167 species. They are mostly natives of the temperate Northern Hemisphere, with a few species reaching the Southern Hemisphere in the Andes in South America. Their typical flowers are catkins and often appear before leaves.
The Cistaceae are a small family of plants known for their beautiful shrubs, which are profusely covered by flowers at the time of blossom. This family consists of about 170(-200) species in eight genera that are not very distinct, distributed primarily in the temperate areas of Europe and the Mediterranean basin, but also found in North America; a limited number of species are found in South America. Most Cistaceae are subshrubs and low shrubs, and some are herbaceous. They prefer dry and sunny habitats. Cistaceae grow well on poor soils, and many of them are cultivated in gardens.
Allocasuarina, commonly known as sheoak or she-oak, is a genus of flowering plants in the family Casuarinaceae and is endemic to Australia. Plants in the genus Allocasuarina are trees or shrubs with soft, pendulous, green branchlets, the leaves reduced to scale-like teeth. Allocasuarinas are either monoecious or dioecious, the flowers never bisexual. Male and female flowers are arranged in spikes, the female spikes developing into cone-like structures enclosing winged seeds.
Zosteraceae is a family of marine perennial flowering plants found in temperate and subtropical coastal waters, with the highest diversity located around Korea and Japan. Most seagrasses complete their entire life cycle under water, having filamentous pollen especially adapted to dispersion in an aquatic environment and ribbon-like leaves that lack stomata. Seagrasses are herbaceous and have prominent creeping rhizomes. A distinctive characteristic of the family is the presence of characteristic retinacules, which are present in all species except members of Zostera subgenus Zostera.
Casuarina, also known as she-oak, Australian pine and native pine, is a genus of flowering plants in the family Casuarinaceae, and is native to Australia, the Indian subcontinent, Southeast Asia, islands of the western Pacific Ocean, and eastern Africa.
Boryaceae is a family of highly drought-tolerant flowering plants native to Australia, placed in the order Asparagales of the monocots. The family includes two genera, with twelve species in total in Australia.
The Ecdeiocoleaceae comprise a family of flowering plants with two genera and three species. The botanical name has rarely been recognized by taxonomists.
Allocasuarina torulosa, commonly known as forest oak, rose sheoak, river oak or Baker's oak, is a species of flowering plant in the family Casuarinaceae and is endemic to eastern Australia. It is a slender, usually dioecious tree that has drooping branchlets up to 140 mm (5.5 in) long, the leaves reduced to scales in whorls of four or five, and the fruiting cones 15–33 mm (0.6–1 in) long containing winged seeds (samaras) 7–10 mm (0.3–0.4 in) long.
Allocasuarina humilis, commonly known as dwarf sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is an erect or spreading dioecious or monoecious shrub that has its leaves reduced to scales in whorls of five to seven, the mature fruiting cones 12–22 mm (0.47–0.87 in) long containing winged seeds (samaras) 5–6 mm (0.20–0.24 in) long.
Allocasuarina distyla, commonly known as scrub she-oak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern New South Wales. It is a dioecious shrub that has branchlets up to 350 mm (14 in) long, the leaves reduced to scales in whorls of six to eight, the fruiting cones 13–35 mm (0.51–1.38 in) long containing winged seeds (samaras) 4.0–8.0 mm (0.16–0.31 in) long.
Allocasuarina luehmannii, commonly known as buloke or bull-oak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern continental Australia. It is a dioecious tree, that has its leaves reduced to scales in whorls of ten to fourteen, and the mature fruiting cones are 5–12 mm (0.2–0.5 in) long containing winged seeds (samaras) 4–5 mm (0.16–0.20 in) long.
Actinorhizal plants are a group of angiosperms characterized by their ability to form a symbiosis with the nitrogen fixing actinomycetota Frankia. This association leads to the formation of nitrogen-fixing root nodules.
Casuarina glauca, commonly known as swamp she-oak, swamp buloke, swamp she-oak, marsh sheoak, grey she-oak, grey she-oak, native pine, or guman by the Gadigal people, is a species of flowering plant that is endemic to eastern Australia. It is a dioecious tree that often forms root suckers and has fissured and scaly bark, spreading or drooping branchlets, the leaves reduced to scales in whorls of 12 to 20, the fruit 9–18 mm (0.35–0.71 in) long containing winged seeds (samaras) 3.5–5.0 mm (0.14–0.20 in) long.
Allocasuarina verticillata, commonly known as drooping sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern Australia. It is a small dioecious tree that has drooping branchlets up to 400 mm (16 in) long, the leaves reduced to scales in whorls of nine to thirteen, the mature fruiting cones 20–50 mm (0.8–2 in) long containing winged seeds (samaras) 7–12 mm (0.3–0.5 in) long.
Allocasuarina nana, commonly known as dwarf she-oak or as stunted sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern continental Australia. It is a low, spreading dioecious, rarely monoecious shrub that has branchlets up to 80 mm (3.1 in) long, the leaves reduced to scales in whorls of four to six, the fruiting cones 14–24 mm (0.55–0.94 in) long containing winged seeds 4–6 mm (0.16–0.24 in) long.
Gymnostoma is a genus of about eighteen species of trees and shrubs, constituting one of the four genera of the plant family Casuarinaceae. The species grow naturally in the tropics, including at high elevations having temperate climates, in forests in the region of the western Pacific Ocean and Malesia. In New Caledonia, published botanical science describes eight species found growing naturally, which botanists have not found anywhere else (endemics). Other species are native to Borneo, Sumatra, Maluku, and New Guinea, and one endemic species each in Fiji and the Wet Tropics of Queensland, Australia.
Ceuthostoma is a genus of two species of trees, constituting part of the plant family Casuarinaceae.
Allocasuarina decussata, commonly known as karri oak or karri she-oak, is a species of flowering plant in the family Casuarinaceae and is endemic to the southwest 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.
