Эвкалипт делегатский: описание и подвиды

Species of eucalyptus

Eucalyptus delegatensis, commonly known as alpine ash, gum topped stringybark, white top and in Victoria as woollybutt, is a species of tree that is endemic to southeastern Australia. It has a straight trunk with rough, fibrous to stringy bark on the lower half of the trunk, smooth white bark above, lance shaped to curved adult leaves, flower buds in groups of between seven and fifteen, white flowers and barrel shaped or hemispherical fruit.

Eucalyptus delegatensis is a tree that typically grows to a height of , sometimes to , and forms a lignotuber. The bark is rough, grey to black, fibrous or stringy on the lower half of the trunk, smooth white to greyish above. Young plants and coppice regrowth have broadly lance shaped to egg shaped leaves long and wide. Adult leaves are lance shaped to curved, the same glossy green to bluish green on both sides, long and wide on a petiole long. The flower buds are arranged in groups of between seven and fifteen in leaf axils on an unbranched peduncle long, the individual buds on a pedicel long. Mature buds are oval to club shaped, green to yellow or red, long and wide with a conical or rounded operculum with a small point on the tip. Flowering occurs between December and March and the flowers are white. The fruit is a woody barrel shaped to hemispherical capsule long and wide with the valves near rim level or enclosed in the fruit.

Eucalyptus delegatensis was first formally described in 1900 by Richard Thomas Baker from a specimen collected by William Baeuerlen, (previously known as Wilhelm Bäuerlen) on "Delegate Mountain". The description was published in Proceedings of the Linnean Society of New South Wales. The specific epithet (delegatensis) refers to the type location. that has broadly lance shaped juvenile leaves and is found in New South Wales and Victoria;
Eucalyptus delegatensis subsp. tasmaniensis Boland that has more or less round juvenile leaves with a short "drip tip" and only grows in Tasmania.

Alpine ash is widespread and often dominant in grassy or wet subalpine forest, in deep fertile soil, often on slopes, and commonly forms pure stands. In New South Wales and the Australian Capital Territory it is found south from the Brindabella Range and in Victoria it occurs at altitudes between east of Mount Macedon. Subspecies tasmaniensis is endemic to Tasmania.