Eucalyptus grandis
55 meter high Eucalyptus grandis
Eucalyptus grandis is a species of the genus Eucalyptus (Eucalyptus ). It is native to eastern Australia, where it is called " Flooded Gum".
Description
Appearance and leaf
Eucalyptus grandis grows as a large tree, reaching heights of growth of up to 50 meters, sometimes up to 70 meters. The trunk is free of branches to a height of 30 feet and can reach a diameter of up to 2 meters. Until a few meters height, the dead bark remains permanently on the tree, about it is smooth, white or gray, and dissolves in short strips or flakes. The bark of the branches is ridged grayish - white.
In Eucalyptus grandis is available Heterophyllie. The dark green glossy leaves are divided into petiole and leaf blade. The only towards the earth and later alternate arranged leaves young species have short petioles and thin leathery, lanceolate to ovate leaf blades. The alternate arranged leaves of older plants are stalked about 2 cm long and its leaf blade is lanceolate with a length of 10 to 16 ( 13 to 20 cm) and a width of 2 to 3 cm. On both surfaces of leaves small glands are present.
Inflorescence, flower and fruit
The pendant, simple, doldigen inflorescences contain (three to ten) seven to eleven flowers. The 8 to 18 mm ( 1 to 1.5 cm) long Blütenstandsschäfte are slim flattened or angular. The terete pedicels are 0-3 mm long.
The hermaphrodite, radial symmetry flowers are four to fünfzählig. The more or less frosted buds are ovoid and a length of 6 to 8 mm (8 to 10 mm) and a diameter of 4 to 5 mm. The hemispherical to conical " calyptra " (or " operculum " called see genus articles Eucalyptus ) is about as long and wide as the inverted - conical to bell-shaped flowers cup ( hypanthium ). There are eight to ten stamens present. The oblong anthers possess glands and open longitudinally. The stylus is shorter than the stamens.
Gray, four to fünffächerigen fruits are a length of 5 to 8 mm and a diameter of 4 to 7 mm to tapered pear-shaped ( pyriform ), wherein the compartments at the upper end of the fruit protrude from the flower cups.
Dissemination
Eucalyptus grandis is native to Queensland and New South Wales and is found in moist woods and on the edge of rainforests. In Queensland Eucalyptus grandis hybridized with Eucalyptus pellita (Henderson, 2002).
As a plantation tree Eucalyptus grandis is tropical and subtropical distributed outside of Australia, including in Africa, South America and India.
Use
Eucalyptus grandis is an important plantation tree and one of the most commercially important Eucalyptus species. The wood has many uses, including boat and furniture, for ladders, sports equipment, and for the production of pulp.