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Allocasuarina littoralis, commonly known as black sheoak, black she-oak, or river black-oak, is an endemic medium-sized Australian tree (usually up to 8 metres, but sometimes to 15 metres - coarse shrub in exposed maritime areas).[3][4] A. littoralis is named for its growth near the coast; this is somewhat misleading, as it will grow well both inland and in coastal zones.[5][6] Studies have shown that in long-time unburnt coastal woodlands, A. littoralis has replaced the original Eucalyptus-dominated woodland.[7]
This evergreen Casaurina tree is noted for its modified branchlets appearing to be leaves (5–8 cm long) and narrow width (no more than 4 mm) and the true leaves are, in fact minute (rarely larger than 1mm) and occur on the tips of the modified branchlets.[8] It is a relatively fast growing tree (up to 800mm. a year) making it very suitable for planting along roadsides. The showy red female flowers appear in spring.[5] It is usually dioecious.
The species occurs in Queensland, New South Wales, Australian Capital Territory, Victoria, and Tasmania.[3] It grows in woodland and sometimes in tall heath, and it grows in sandy and other poor soils.[6]
Allocasuarina littoralis, commonly known as black sheoak, black she-oak, or river black-oak, is an endemic medium-sized Australian tree (usually up to 8 metres, but sometimes to 15 metres - coarse shrub in exposed maritime areas). A. littoralis is named for its growth near the coast; this is somewhat misleading, as it will grow well both inland and in coastal zones. Studies have shown that in long-time unburnt coastal woodlands, A. littoralis has replaced the original Eucalyptus-dominated woodland.
Allocasuarina littoralis est une espèce d'arbre, proche des filaos, originaire d'Australie.
C'est un arbre de taille moyenne (habituellement jusqu'à 8 mètres, mais parfois 15 mètres) que l'on trouve aussi bien auprès des côtes qu'à l'intérieur des terres.
Arbre à feuilles persistantes, il est connu pour ses petites feuilles (5-8 cm de long pas plus de 4 mm de large) et est relativement à croissance rapide (jusqu'à 80 cm/an) ce qui rend très adapté à la plantation le long des routes. Les fleurs rouges apparaissent au printemps.
On le trouve à partir de la péninsule du cap York, au Queensland, en descendant vers le sud, le long de la côte et sur les plateaux adjacents jusqu'au Parc national Great Otway au Victoria et sur la côte est de la Tasmanie au sud de Hobart.
Il pousse dans les savanes boisées et parfois dans les landes de grande hauteur.
Il prospère dans les sols sablonneux et les autres terrains pauvres.
Planche botanique
Fruits
Allocasuarina littoralis est une espèce d'arbre, proche des filaos, originaire d'Australie.
C'est un arbre de taille moyenne (habituellement jusqu'à 8 mètres, mais parfois 15 mètres) que l'on trouve aussi bien auprès des côtes qu'à l'intérieur des terres.
Allocasuarina littoralis là một loài thực vật có hoa trong họ Casuarinaceae. Loài này được (Salisb.) L.A.S.Johnson mô tả khoa học đầu tiên năm 1982.[1]
Allocasuarina littoralis là một loài thực vật có hoa trong họ Casuarinaceae. Loài này được (Salisb.) L.A.S.Johnson mô tả khoa học đầu tiên năm 1982.
