''Eucalyptus nandewarica'', commonly known as mallee red gum, is a species of tree or mallee that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to a small area of western New South Wales. It has mostly smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.

Description

''Eucalyptus nandewarica'' is a tree or mallee that typically grows to a height of and forms a lignotuber. It has smooth, greyish bark mottled with other colours, sometimes with some rough, fibrous bark near the base. Young plants and coppice regrowth have dull green, lance-shaped leaves that are long and wide and

petiolate Petiole may refer to: *Petiole (botany), the stalk of a leaf, attaching the blade to the stem *Petiole (insect anatomy) In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, a ...

. Adult leaves are lance-shaped, the same shade of dull light green on both sides, long and wide tapering to a petiole long. The flower buds are arranged in groups of three or seven in leaf

axil A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...

s on an unbranched peduncle long, the individual buds on

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

up to long. Mature buds are oval to diamond-shaped, long and about wide with a conical operculum. Flowering has been observed in December and the flowers are white. The fruit is a woody cup-shaped or hemispherical capsule long and wide with the valves protruding strongly.

Taxonomy and naming

''Eucalyptus nandewarica'' was first formally described in 1990 by Lawrie Johnson and Ken Hill in the journal '' Telopea'', from specimens collected in the

Mount Kaputar National Park The Mount Kaputar National Park is a national park located in New South Wales, Australia, surrounding the proximities of Mount Kaputar, a volcano active between 17 and 21 million years ago. It is located east of Narrabri and northwest of ...

in 1986. 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 ...

(''nandewarica'') refers to the

Nandewar Range The Nandewar Range, a mountain range that is part of the Great Dividing Range, is located in the North West Slopes region of New South Wales, Australia. The range is situated approximately east of the township of Narrabri. John Oxley was the ...

where this species occurs.

Distribution and habitat

Mallee red gum grows in mallee shrubland in the Nandewar Ranges, the

Warrumbungle Range The Warrumbungles is a mountain range in the Orana region of New South Wales, Australia. The nearest town is Coonabarabran. The area is easiest accessed from the Newell Highway which is the major road link directly between Melbourne, Victoria ...

and nearby ridges.

References

{{Taxonbar, from=Q15353407 nandewarica Myrtales of Australia Flora of New South Wales Plants described in 1990 Trees of Australia Taxa named by Lawrence Alexander Sidney Johnson Taxa named by Ken Hill (botanist)