Eucalyptus radiata

Eucalyptus radiata

The Peppermint (Eucalyptus radiata ) is a species within the myrtle family ( Myrtaceae ). It occurs on the east coast of New South Wales and Victoria and Queensland, where it is "Narrow -leaved Peppermint ", " Forth River Peppermint " or " River White Gum " called.

Description

Appearance and leaf

Eucalyptus radiata grows as a tree, the plant height of 30 meters, rarely up to 50 meters, is reached. The bark is left on the trunk and larger branches or the entire tree is gray to gray - brown and short-fibred. Further up the tree is smooth and gray and peels in long strips.

In Eucalyptus radiata is present Heterophyllie. The oppositely arranged leaves constantly in young specimens are narrow - lanceolate to broadly lanceolate and pale green. The monochrome green, more or less glossy leaves on older specimens are narrow - lanceolate or lanceolate with a length of 7 to 15 cm and a width of 0.7 to 1.5 cm.

Inflorescence and flower

Terete in cross section, 2-8 mm long Blütenstandsschäften are more than elfblütige partial inflorescences in total inflorescences. The terete pedicels are 1-5 mm long. The flower buds are clavate at a diameter of 2 to 4 mm and a length of 3 to 6 mm. The sepals form a calyptra. The calyptra is conical or hemispherical in shape and shorter and narrower than the flower cup ( hypanthium ). The flowers are creamy white.

Fruit

The fruit is spherical, semi-spherical or pear-shaped with a length and a diameter of 4 to 6 mm. The disc is flat. The fruit bins are included, or the height of the rim.

Occurrence

The distribution area of peppermint eucalyptus extends from the Great Dividing Range on the border between Queensland and New South Wales down to the east of Victoria. The Peppermint Eucalyptus growing on a variety of soils in woods and open woods. It grows best in cooler, wetter climate. Also in northwest Tasmania can peppermint eucalyptus encounter.

System

The first description of Eucalyptus radiata was made in 1828 by the Swiss botanist Augustin de Candolle in - Pyrame Prodromus systematis Naturalis Regni Vegetabilis, Volume 3, page 218 The type material has the caption " Sieber, pl. exs. nov. - holl. n 25 "on.

From Eucalyptus radiata are two subspecies:

• Eucalyptus radiata Sieber ex DC. subsp. radiata ( syn. Eucalyptus amygdalina var radiata ( DC.) Benth, Eucalyptus radiata var subexserta Blakely, Eucalyptus radiata var australiana ( RTBaker & DDWM ) Blakely, Eucalyptus phellandra RTBaker & DDWM, Eucalyptus amygdalina. .. . numerosa var nom illeg Maiden, Eucalyptus australiana RTBaker & DDWM ): .. It occurs in Victoria and New South Wales. The leaves of young specimens are linear to lanceolate.
• Eucalyptus radiata subsp. sejuncta LASJohnson & KDHill ( syn. Eucalyptus radiata var subplatyphylla Blakely & McKie ): It occurs in Queensland and New South Wales. The leaves of young specimens are broad - lanceolate.

Use

Peppermint Eucalyptus has six chemotypes of essential oils. From the foliage leaves of eucalyptus oil is distilled on the basis of cineole and phellandrene. These eucalyptus was the first chemist Joseph Bosisto (1827-1898) from Melbourne in 1854 recovered commercially, under the name Eucalyptus amygdalina.