Английская Википедия:Eucalyptus cambageana
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Eucalyptus cambageana, commonly known as the Dawson River blackbutt, Dawson gum[1] or Coowarra box,[2] is a species of tree that is endemic to Queensland, Australia. It is a medium-sized tree with hard, rough bark on the lower trunk, smooth white to cream-coloured bark above, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to funnel-shaped fruit.
Description
Eucalyptus cambageana is a tree that typically grows to a height of Шаблон:Cvt high and forms a lignotuber. The bark on the lowest Шаблон:Cvt of the trunk is hard, rough, dark grey to black then abruptly changes above to smooth, white to grey bark. The leaves on young plants and coppice regrowth are egg-shaped, Шаблон:Convert long and Шаблон:Convert wide and dull bluish grey. Adult leaves are lance-shaped, sometimes curved, the same glossy green on both sides, Шаблон:Convert long and Шаблон:Convert wide on a petiole Шаблон:Convert long. The flower buds are arranged in groups of seven in leaf axils on a peduncle Шаблон:Convert long, the individual flowers on a pedicel usually Шаблон:Convert long. Mature buds are oval, Шаблон:Convert long and Шаблон:Convert wide with a conical to rounded operculum. Flowering occurs between July and September and the flowers are white. The fruit is a woody, cup-shaped to funnel-shaped capsule Шаблон:Convert long and Шаблон:Convert wide with the valves enclosed below the rim.[1][2][3]
Taxonomy and naming
Eucalyptus cambageana was first formally described in 1913 by Joseph Maiden described from a specimen collected in 1912 from Mirtna Station near Charters Towers.[4] The specific epithet (cambageana) honours surveyor and botanist Richard Hind Cambage.[3][5]
Distribution and habitat
Dawson River blackbutt is found from near Charleville, Charters Towers and Jericho to the coast of Queensland. It grows in scrubland or open woodland with brigalow (Acacia harpophylla), belah (Casuarina cristata), and wilga (Geijera parviflora). These open woodland communities where it is co-dominant with brigalow are found on clay, alluvial, or sedimentary soils.[2][6][7][8][9]
The presence of E. cambageana is an indicator of sodic soil, which has implications for agriculture in the region.[10]
Conservation
This eucalypt is classed as "least concern" under the Queensland Government Nature Conservation Act 1992.[11]
Uses
The heavy reddish-brown timber of this eucalypt is used for fence posts in the local area. It grows into too large a tree for gardens in general, but its contrasting bark give it horticultural potential for parks and acreage.[3]
See also
References
- Английская Википедия
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- Eucalyptus
- Flora of Queensland
- Drought-tolerant trees
- Myrtales of Australia
- Plants described in 1914
- Taxa named by Joseph Maiden
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