Pokolbin mallee | |
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Eucalyptus pumila at Pokolbin | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Eucalyptus |
Species: | E. pumila |
Binomial name | |
Eucalyptus pumila | |
Eucalyptus pumila, commonly known as the Pokolbin mallee, [2] is a species of mallee that is endemic[ to New South Wales. It has smooth bark, lance-shaped to curved or elliptical adult leaves, flower buds in groups of seven, white flowers and hemispherical or cup-shaped fruit.
Eucalyptus pumila is a mallee that typically grows to a height of 5–6 m (16–20 ft) and forms a lignotuber. It has smooth copper-coloured bark that fades to grey and is shed in strips. Young plants and coppice regrowth have egg-shaped leaves that are egg-shaped, up to 100 mm (3.9 in) long and 60 mm (2.4 in) wide and petiolate. Adult leaves are the same shade of green on both sides, lance-shaped to curved or elliptical, 50–160 mm (2.0–6.3 in) long and 10–30 mm (0.39–1.18 in) wide tapering to a petiole 8–20 mm (0.31–0.79 in) long. The flower buds are usually arranged in leaf axils on a thick, unbranched peduncle 6–15 mm (0.24–0.59 in) long, the individual buds on pedicels 2–5 mm (0.079–0.197 in) long. Mature buds are oblong to oval, 7–11 mm (0.28–0.43 in) long and 4–6 mm (0.16–0.24 in) wide with a conical operculum. Flowering occurs between February and August and the flowers are white. The fruit is a woody, hemispherical or cup-shaped capsule 4–6 mm (0.16–0.24 in) long and 7–9 mm (0.28–0.35 in) wide with the valves strongly protruding. [2] [3] [4] [5] [6]
Eucalyptus pumila was first formally described in 1919 by Richard Cambage in Journal and Proceedings of the Royal Society of New South Wales . [7] [8] The specific epithet (pumila) is from the Latin pumilis meaning "dwarf" referring to the habit of this mallee. [3]
Pokolbin mallee is restricted to the northern end of the Broken Back Range near Pokolbin where it grows in pure stands among sandstone rock outcrops on a steep hill. There are also historical records from Wyong and Sandy Hollow. [4] [6]
This mallee is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 . The main threats to the species are its small population size and inappropriate fire regimes. [5] [6]
Eucalyptus polybractea, commonly known as the blue-leaved mallee or simply blue mallee, is a species of mallee that is endemic to south-eastern Australia. It has rough, fibrous or flaky bark on the lower part of the trunk, smooth greyish or brownish bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped or barrel-shaped fruit.
Eucalyptus curtisii, commonly known as Plunkett mallee, is a species of mallee or small tree that is endemic to south-east Queensland in Australia. It has smooth grey to silvery bark, lance-shaped, narrow elliptic or curved adult leaves, flower buds in groups of seven, white flowers and wrinkled, cup-shaped fruit.
Eucalyptus pulverulenta, commonly known as silver-leaved mountain gum, is a species of straggly tree or mallee that is endemic to southern New South Wales. It has smooth bark, egg-shaped, heart-shaped or round, sessile leaves arranged in opposite pairs, flower buds in groups of three, white flowers and cup-shaped to cylindrical fruit.
Eucalyptus recurva, commonly known as Mongarlowe mallee, is a species of dense mallee shrub that is endemic to a small area of New South Wales. It has smooth bark, a crown consisting of unusually small, juvenile leaves, flower buds in groups of three, white flowers and hemispherical fruit. It is only known from six extremely old multi-stemmed individual plants and is classed as "critically endangered".
Eucalyptus notabilis, commonly known as Blue Mountains mahogany or mountain mahogany, is a species of small to medium-sized tree endemic to eastern Australia. It has rough, fibrous bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and hemispherical or conical fruit.
Eucalyptus imlayensis, commonly known as the Mount Imlay mallee, is a species of small, straggly mallee that is endemic to the far south east of New South Wales, only occurring near the summit of Mount Imlay. It has mostly smooth bark, lance-shaped to curved adult leaves, flower buds in groups of three, white flowers and cup-shaped, bell-shaped or hemispherical fruit.
Eucalyptus moorei, commonly known as narrow-leaved sally, is a species of mallee that is endemic to New South Wales. It has smooth bark, linear to narrow lance-shaped or curved adult leaves, flower buds in groups of between seven and fifteen, white flowers and cup-shaped or shortened spherical fruit.
Eucalyptus parvula, commonly known as small-leaved gum, is a species of small tree that is endemic to south-eastern New South Wales. It has mostly smooth bark, elliptical to lance-shaped adult leaves but with many juvenile of intermediate leaves in the crown, flower buds in groups of seven, white flowers and cup-shaped fruit.
Eucalyptus kybeanensis, commonly known as the Kybean mallee ash, is a species of mallee or tree that is endemic to south eastern Australia. It has smooth, white or greyish bark, lance-shaped adult leaves, flower buds in groups of seven, nine or eleven, white flowers and conical or hemispherical fruit.
Eucalyptus langleyi, commonly known as the green mallee ash or albatross mallee, is a species of mallee that is endemic to a small area of New South Wales. It has mostly smooth grey to yellowish bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to barrel-shaped fruit.
Eucalyptus castrensis, commonly known as Singleton mallee or Pokolbin mallee box, is a species of mallee that is endemic to a small area of New South Wales in eastern Australia. It has mostly smooth bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit.
Eucalyptus aquatica, commonly known as broad-leaved sally, or mountain swamp gum is a tree or mallee that is endemic to a small area of New South Wales in eastern Australia. It has smooth, greyish bark, dull bluish green adult leaves, flower buds arranged in groups of seven, white flowers and conical or hemispherical fruit. It grows in swamps and other places with poor drainage.
Eucalyptus boliviana, commonly known as Bolivia Hill stringybark or Bolivia stringybark is a shrub or a mallee, sometimes a small tree and is endemic to a small area in northern New South Wales. It is a stringybark with four-sides stems, broadly lance-shaped adult leaves, flower buds arranged in groups of seven, yellow flowers and hemispherical to broadly funnel-shaped fruit.
Eucalyptus magnificata, commonly known as blue box or northern blue box, is a species of small tree or sometimes a mallee that is restricted to a small area of New South Wales. It has rough, fibrous or flaky bark on the trunk and larger branches, smooth bark above, broadly lance-shaped to egg-shaped leaves, flower buds in groups of seven, white or pale yellow flowers and conical fruit.
Eucalyptus sessilis, commonly known as Finke River mallee, red bud mallee or river mallee, is a species of mallee that is native to the Northern Territory and central areas along the border of Western Australia. It has smooth bark, sometimes with ribbon of old bark near the base, lance-shaped to egg-shaped or elliptical adult leaves, flower buds in groups of seven, creamy yellow flowers and hemispherical fruit.
Eucalyptus yilgarnensis, commonly known as yorrell or yorrel, is a species of mallee, rarely a small tree, that is endemic to Western Australia. It usually has rough bark on the trunk, smooth bark above, linear to narrow elliptical or narrow lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and barrel-shaped fruit.
Eucalyptus camfieldii, commonly known as Camfield's stringybark or heart-leaved stringybark, is a species of mallee or small tree that is endemic to New South Wales. It has rough, fibrous and stringy bark, broadly lance-shaped adult leaves, flower buds in groups of about eleven, white flowers and flattened hemispherical fruit. It grows in poor, sandy soil in the Sydney region.
Eucalyptus peninsularis, commonly known as Cummins mallee, is a species of mallee that is endemic to a small area of South Australia. It has smooth, greyish or brownish bark, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy yellow flowers and urn-shaped fruit.
Eucalyptus conglomerata, commonly known as the swamp stringybark, is a species of straggly tree or mallee that is endemic to Queensland. It has rough, fibrous "stringybark" lance-shaped to oblong adult leaves, flower buds in groups of eleven or more, white flowers and more or less barrel-shaped fruit.
Eucalyptus normantonensis, commonly known as Normanton box, is a species of mallee, rarely a small tree, that is endemic to northern Australia. It has rough, fibrous or flaky bark on some or all of the stems, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cylindrical, barrel-shaped or shortened spherical fruit.