Casuarina equisetifolia
Schachtelhalmblättrige casuarina ( Casuarina equisetifolia ), branches with inflorescences.
The Schachtelhalmblättrige casuarina ( Casuarina equisetifolia ), also known as kangaroo tree or Kasuarinabaum, is a flowering plant in the family of Kasuarinengewächse ( Casuarinaceae ).
Description
The Schachtelhalmblättrige casuarina is achieved meters a slender, lockerkroniger, evergreen tree, the plant height to 6 to 35 ( rarely up to 60 ). The bark is light grayish - brown to blackish. In its growth habit and its foliage is reminiscent of a conifer. The grayish - green, needle-like branches are discarded. The leaves are like for Kasuarinengewächse to typical tiny, pointed scales regressed and are available to seventh and eight together in whorls.
Casuarina equisetifolia is dioecious ( dioecious ) or monoecious ( monoecious ) getrenntgeschlechtig. The unisexual flowers are greatly reduced. Bracts absent; they are replaced by two bracts. In terminal, woody, small, peg-shaped, simple, aged men inflorescences with a diameter of up to 12 millimeters and a length of 7 to 40 millimeters, the male flowers are borne; they consist only of one stamen. Stand on lateral short shoots small ( 10-24 × 9-13 mm), cylindrical peg-shaped to spherical inflorescences aged men with the female flowers that have red scars. At maturity, the peg-shaped woody seed heads. They contain gray to yellow-brown, 6-8 mm long, winged nut fruits (Samara ).
Distribution area
The natural range of Schachtelhalmblättrigen casuarina extends from the northeast and north of Australia over the Pacific islands to the coastal regions of tropical Southeast Asia.
The Schachtelhalmblättrige Casuarina grows naturally on beaches and also gets along with locations, which is exposed on headlands. In places, the tree forms large stocks. The fruits are buoyant, which explains the large distribution range of this species.
The Schachtelhalmblättrige Casuarina is now throughout the tropics, especially common on beaches.
Others
The casuarina is planted because of their resistance to salt and its fast growth in many tropical and subtropical countries as an ornamental tree, the wind protection and fixing of dunes. Their ability to grow on nutrient-poor sandy very based, including on a symbiosis with nitrogen-fixing jets fungi ( actinomycetes ) of the genus Frankia (similar to the native sea buckthorn ).
The casuarina can form proteoid.
The wood is one because of its hardness to the so-called " iron wood ". Traditionally this wood of Polynesians for the construction of canoes and for the production of mace was used.
Subspecies
There are two subspecies:
- Casuarina equisetifolia L. subsp. equisetifolia
- Casuarina equisetifolia subsp. incana ( Benth. ) LASJohnson: it remains small.
Pictures
Female inflorescences and infructescences.
Fruit stands.
Trunk and branches.
Habitus.
Swell
- Information on Art at the World Agroforestry Centre (English )
- Description in the Flora of Australia (English )