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Casuarina equisetifolia, commonly known as coastal she-oak, horsetail she-oak, [3] ironwood, [4] beach sheoak, beach casuarina, whistling tree [5] or Australian pine [6] is a species of flowering plant in the family Casuarinaceae and is native to Australia, New Guinea, Southeast Asia and India.
Female cones of C. equisetifolia. Casuarina, also known as she-oak, Australian pine [3] [4] [5] and native pine, [6] 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.
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, [ 3 ] [ 4 ] Allocasuarina in 1982, [ 4 ] and Ceuthostoma in 1988, with some additional formal descriptions of new species in each other genus. [ 5 ]
Some Casuarinaceae species are also referred to as Beefwoods, Casuarina equisetifolia, Casuarina cunninghamiana, Allocasuarina verticillata, Allocasuarina distyla (Syn.: Casuarina stricta) etc. Furthers: also Manilkara bidentata and Manilkara spp. from South and Central America and the Caribbean
File:Starr-170624-0907-Casuarina equisetifolia-male and female flowers and cones-Abandoned Runway Near Rusty Bucket Sand Island-Midway Atoll (36059371970).jpg Add languages Page contents not supported in other languages.
The sandy shores of the park are dominated by Casuarina equisetifolia. [3] The park has 50 species of mammal, many of them critically endangered. There are only 12-14 Sumatran rhinoceros in the area, [9] down from around 40 in the 1990s. [10] The number of Sumatran elephants in the park was estimated to be 247 in 2015. [11]
Gymnostoma sumatranum is characterised by its multiple rounded umbrella-shaped crowns, while Casuarina equisetifolia (the most well-known member of Casuarinaceae) is typified by its equisetoid appearance. The roots have nitrogen-fixing nodules. The stems are angular or tetrahedral in cross section (2).
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