''Eucalyptus melanoleuca'', commonly known as yarraman ironbark
or nanango ironbark,
is a species of tree that is
endemic to south-east Queensland. It has rough
ironbark on the trunk and larger branches, smooth bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and barrel-shaped, to cup-shaped or conical fruit.
Description
''Eucalyptus melanoleuca'' is a tree that typically grows to a height of and forms a
lignotuber. It has rough black bark on the trunk and larger branches, smooth white bark above. Young plants and
coppice regrowth have egg-shaped leaves long and wide on a short
petiole. Adult leaves are the same shade of glossy green on both sides, lance-shaped, long and wide, tapering to a petiole long. The flower buds are arranged in leaf axils and on the ends of branchlets on a branching
peduncle Peduncle may refer to:
*Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed
*Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body
**Peduncle (art ...
, each branch with groups of seven buds. The peduncle is long with each bud on a
pedicel long. Mature buds are oval to pear-shaped, long and wide with a conical
operculum that is narrower and shorter that the
floral cup
In angiosperms, a hypanthium or floral cup is a structure where basal portions of the calyx, the corolla, and the stamens form a cup-shaped tube. It is sometimes called a floral tube, a term that is also used for corolla tube and calyx tube. It ...
. Flowering mainly occurs between June and September and the flowers are white. The fruit is a woody, barrel-shaped to cup-shaped or hemispherical
capsule long and wide, with the valves below the level of the fruit.
Taxonomy and naming
''Eucalyptus melanoleuca'' was first formally described by
Stanley Thatcher Blake in the journal ''
Austrobaileya'' from a specimen he collected near
Yarraman
Yarraman is a rural town and locality in the Toowoomba Region, Queensland, Australia. In the , Yarraman had a population of 1,064 people.
Geography
Yarraman is located northwest of the state capital, Brisbane on the junction of the New England ...
.
The
specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
(''melanoleuca'') refers to the strongly contrasted black and white trunk.
Distribution and habitat
Yarraman ironbark grows in open forest and on the edges of rainforest between the
Blackdown Tableland and Yarraman.
Conservation status
This eucalypt is classed as "least concern" under the Queensland Government ''
Nature Conservation Act 1992''.
See also
*
List of ''Eucalyptus'' species
References
{{Taxonbar, from=Q7212969
Trees of Australia
melanoleuca
''Melanoleuca'' is a poorly known genus of saprotrophic mushrooms traditionally classified in the family Tricholomataceae. Most are small to medium sized, white, brown, ocher or gray with a cylindrical to subcylindrical stipe and white to pa ...
Myrtales of Australia
Flora of Queensland
Plants described in 1977
Taxa named by Stanley Thatcher Blake