Corymbia clarksoniana

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Clarkson's bloodwood
Corymbia clarksoniana.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Corymbia
Species:
C. clarksoniana
Binomial name
Corymbia clarksoniana
Synonyms [1]
  • Corymbia dolichocarpa(D.J.Carr & S.G.M.Carr) K.D.Hill & L.A.S.Johnson
  • Corymbia ligans subsp. burdekinensisK.D.Hill & L.A.S.Johnson
  • Corymbia maritimaK.D.Hill & L.A.S.Johnson
  • Eucalyptus clarksonianaD.J.Carr & S.G.M.Carr
  • Eucalyptus dolichocarpaD.J.Carr & S.G.M.Carr
Corymbia clarskoniana flowers Corymbia clarskoniana flowers.jpg
Corymbia clarskoniana flowers
Corymbia clarksoniana capsules and foliage Corymbia clarksoniana capsules and foliage.jpg
Corymbia clarksoniana capsules and foliage

Corymbia clarksoniana, commonly known as Clarkson's bloodwood or the grey bloodwood, [2] is a species of medium-sized tree that is native to Queensland and northern New South Wales. It has rough, tessellated greyish to brownish bark on the trunk and branches, lance-shaped, glossy green leaves that are paler on the lower surface, flower buds in groups of seven, white flowers and urn-shaped to barrel-shaped fruit.

Contents

Description

The tree typically grows to a height of up to 20 m (66 ft) and has tessellated red-brown to grey-brown persistent bark throughout. The dull grey-green adult leaves have a disjunct arrangement and a narrow lanceolate to lanceolate shape that is basally tapered. The thin discolorous leaves have a length of 12 to 20 cm (4.7 to 7.9 in) and a width of 14 to 35 mm (0.55 to 1.38 in) with obscure lateral veins. [3] The terminal compound inflorescences occur in groups of seven per umbel on pedicels with a length of 0.3 to 1 cm (0.12 to 0.39 in). The mature buds have an obovoid to pyriform shape with a length of 0.7 to 1.2 cm (0.28 to 0.47 in) and a width of 0.4 to 0.8 cm (0.16 to 0.31 in) with a rounded to conical and beaked operculum and white flowers. The species can flower as early as January but usually flowers between March and August. The fruits that appear after flowering are pedicellate with an urceolate to barrel shape. They are around 1.2 to 2.5 cm (0.47 to 0.98 in) in length and 0.9 to 1.6 cm (0.35 to 0.63 in) wide with a descending disc and three or four enclosed valves. The reddish brown seeds within the fruit have an ellipsoidal shape with a terminal wing and have a length of 9 to 11 mm (0.35 to 0.43 in). [4] [5]

Taxonomy

The species was first formally described by the botanists Denis Carr and Stella Carr in 1987 as Eucalyptus clarksoniana, in their book Eucalyptus II - The rubber cuticle, and other studies of the Corymbosae. The type specimens were collected by J.R. Clarkson on the track between New Dixie and Killarney stations on Cape York. [6] It was reclassified in 1995 as Corymbia clarksoniana by Ken Hill and Lawrie Johnson in the journal Telopea . [7] [8] : 259–261 

Corymbia clarksoniana is one of a group of five closely related species that are found in Queensland. The others are C. polycarpa , C. novoguinensis , C. plena and C. ligans . [4]

The specific epithet honours John Richard Clarkson (born 1950) who worked at the Queensland Herbarium as a technician. He graduated from the University of Queensland in 1977 and was transferred to Mareeba in far north Queensland. He is a prolific botanical collector, contributing many specimens that are new to science. [4]

The name C. clarksoniana is not listed at the National Herbarium of New South Wales, where C. dolichocarpa is described. [9]

Distribution and habitat

The tree is endemic to eastern parts of Queensland and far northern parts of New South Wales. [10] The medium-sized bloodwood is found on inland plains and part of grassy woodlands and forests communities growing in sand and sandy loam soils but can be found in skeletal soils on ridges and hill tops. [4] [10]

Hill and Johnson described C. clarksoniana as endemic to Queensland [8] but also recognised C. clarksoniana, C. dolichocarpa and C. maritima as distinct species with intermediate populations. They recorded C. dolichocarpa as occurring from Charters Towers in Queensland to near Narrabri in New South Wales [8] : 267–268  and C. maritima from near-coastal areas from Cardwell to the Whitsundays. [8] : 261–262  The Australian Plant Census considers all three to constitute a single species. [1]

See also

Related Research Articles

<i>Corymbia abergiana</i> Species of plant

Corymbia abergiana, commonly known as range bloodwood or Rockingham Bay bloodwood, is a species of tree that is endemic to Queensland. It has rough bark on the trunk and larger branches, smooth bark on the smaller branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and barrel-shaped fruit with a very thick rim.

<i>Corymbia polycarpa</i> Species of plant

Corymbia polycarpa, also known as the long-fruited bloodwood or small-flowered bloodwood, is a species of tree that is endemic to northern Australia. Indigenous Australians of different language groups have different names for the tree. The Nungali peoples know the tree as narrga or gunjid, the Mulluk-Mulluk know it as dawart, the Yangman know it as bodog, the Gurindji peoples as jadburru and the Wagiman as jagatjjin. It is a medium-sized tree with rough, tessellated bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven or nine, white or cream-coloured flowers and barrel-shaped fruit.

<i>Corymbia terminalis</i> Species of plant

Corymbia terminalis, also known as tjuta, joolta, bloodwood, desert bloodwood, plains bloodwood, northern bloodwood, western bloodwood or the inland bloodwood, is a species of small to medium-sized tree, rarely a mallee that is endemic to Australia. It has rough, tessellated bark on some or all of the trunk, sometimes also on the larger branches, smooth white to cream-coloured bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and urn-shaped fruit.

<i>Corymbia eximia</i> Species of plant

Corymbia eximia, commonly known as the yellow bloodwood, is a bloodwood native to New South Wales. It occurs around the Sydney Basin often in high rainfall areas on shallow sandstone soils on plateaux or escarpments, in fire prone areas. Growing as a gnarled tree to 20 m (66 ft), it is recognisable by its distinctive yellow-brown tessellated bark. The greyish green leaves are thick and veiny, and lanceolate spear- or sickle-shaped. The cream flowerheads grow in panicles in groups of seven and appear in spring. Known for many years as Eucalyptus eximia, the yellow bloodwood was transferred into the new genus Corymbia in 1995 when it was erected by Ken Hill and Lawrie Johnson. It is still seen under the earlier name in some works.

Corymbia greeniana is a species of tree that is endemic to northern Australia. It has rough bark on some or all of the trunk and larger branches, smooth bark above, broadly lance-shaped to egg-shaped adult leaves, flower buds usually in groups of seven, creamy white flowers and urn-shaped fruit with a distinct neck.

Corymbia arnhemensis, commonly known as the Katherine Gorge bloodwood, is a species of slender tree that is endemic to the Top End of the Northern Territory. It has rough bark on some or all of the trunk, sometimes the larger branches, smooth bark above, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and urn-shaped fruit.

<i>Corymbia eremaea</i> Species of plant

Corymbia eremaea, commonly known as mallee bloodwood, hill bloodwood and centre range bloodwood, is a small, mallee-like tree that is endemic to central Australia. Indigenous Australians know the plant as muur-muurpa. It has rough, evenly tessellated bark, lance-shaped leaves, oval to pear-shaped flower buds arranged on a branching peduncle and urn-shaped fruit.

<i>Corymbia erythrophloia</i> Species of plant

Corymbia erythrophloia, commonly known as the red bloodwood, variable-barked bloodwood, red-barked bloodwood or gum-topped bloodwood, is a species of tree that is endemic to Queensland. It has rough bark on the trunk and branches, egg-shaped or lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped to spherical fruit.

<i>Corymbia foelscheana</i> Species of plant

Corymbia foelscheana, commonly known as the broad-leaved bloodwood, fan-leaved bloodwood or smooth-barked bloodwood, is a species of small tree that is endemic to northern Australia. It has thin, rough, tessellated bark on some or all of the trunk, smooth bark above, broadly egg-shaped to broadly lance- shaped adult leaves, flower buds usually in groups of seven, creamy white flowers and urn-shaped fruit.

<i>Corymbia gilbertensis</i> Species of plant

Corymbia gilbertensis, commonly known as the Gilbert River ghost gum or Gilbert River box, is a species of tree that is endemic to tropical far north Queensland. It has rough, tessellated bark on the lower part of the trunk, smooth bark above, a crown of juvenile, intermediate and adult leaves, flower buds mostly in groups of seven, creamy white flowers and cup-shaped to barrel-shaped fruit.

<i>Corymbia hylandii</i> Species of plant

Corymbia hylandii, commonly known as Hyland's bloodwood, is a species of small tree that is endemic to part of the Cape York Peninsula. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped fruit.

<i>Corymbia brachycarpa</i> Species of plant

Corymbia brachycarpa is a species of tree that is endemic to central Queensland. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped to barrel-shaped fruit.

Corymbia ellipsoidea is a species of tree that is endemic to Queensland. It has rough bark on the trunk and larger branches, lance-shaped adult leaves, flower buds usually in groups of seven, creamy white flowers and barrel-shaped to urn-shaped fruit.

Corymbia lamprophylla, commonly known as the shiny-leaved bloodwood, is a species of tree that is endemic to central Queensland. It has rough, tessellated bark on the trunk and larger branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped fruit.

Corymbia rhodops, commonly known as the red-throated bloodwood, is a species of tree that is endemic to Queensland. It has rough, tessellated bark on the trunk and larger branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers with a red centre, and urn-shaped to barrel-shaped fruit.

Corymbia scabrida, commonly known as the rough-leaved yellowjacket, is a species of small tree that is endemic to central Queensland. It has rough, tessellated bark on the trunk and branches, a crown of juvenile and intermediate leaves, flower buds in groups of seven, white flowers and barrel-shaped to urn-shaped or shortened spherical fruit.

<i>Corymbia setosa</i> Species of plant

Corymbia setosa, commonly known as the rough leaved bloodwood or desert bloodwood, is a species of small tree that is endemic to north-eastern Australia. It has rough, tessellated brown bark on the trunk and branches, a crown of juvenile, heart-shaped leaves arranged in opposite pairs, flower buds in groups of three or seven, white flowers and urn-shaped to shortened spherical fruit.

Corymbia stockeri, commonly known as the blotchy bloodwood, is a species of small tree that is endemic to Cape York Peninsula in Queensland. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and barrel-shaped to urn-shaped fruit.

<i>Corymbia umbonata</i> Species of plant

Corymbia umbonata, commonly known as the rusty bloodwood, is a species of tree that is endemic to the Top End of the Northern Territory. It has thin, rough bark on the trunk, often also the branches, lance-shaped or curved adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped fruit.

Corymbia novoguinensis is a species of tree that is native to New Guinea, some Torres Strait Island and the Cape York Peninsula. It has rough bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped to barrel-shaped fruit.

References

  1. 1 2 3 "Corymbia clarksoniana". Australian Plant Census. Retrieved 5 February 2020.
  2. ↑ "Corymbia clarksoniana (Clarkson's Bloodwood, Grey Bloodwood)". James Cook University . Retrieved 1 October 2016.
  3. ↑ "Corymbia clarksoniana (D.J. Carr & S.G.M. Carr) K.D. Hill & L.A.S. Johnson, Telopea 6: 259 (1995)". Eucalink. Royal Botanic Garden, Sydney. Retrieved 1 October 2016.
  4. 1 2 3 4 "Corymbia clarksoniana Clarkson's Bloodwood". Euclid. CSIRO . Retrieved 18 January 2019.
  5. ↑ "Corymbia clarksoniana". Centre for Australian National Biodiversity Research. Retrieved 5 June 2020.
  6. ↑ "Eucalyptus clarksoniana". APNI. Retrieved 5 February 2020.
  7. ↑ "Corymbia clarksoniana". APNI. Retrieved 5 February 2020.
  8. 1 2 3 4 Hill, Kenneth D.; Johnson, Lawrence A.S. (13 December 1995). "Systematic studies in the eucalypts. 7. A revision of the bloodwoods, genus Corymbia (Myrtaceae)". Telopea. 6 (2–3). doi: 10.7751/telopea19953017 .
  9. ↑ Hill, Kenneth D. "Corymbia dolichocarpa". Royal Botanic Garden Sydney. Retrieved 27 January 2023.
  10. 1 2 "Corymbia clarksoniana (D.J.Carr & S.G.M.Carr) K.D.Hill & L.A.S.Johnson". Atlas of Living Australia. Global Biodiversity Information Facility . Retrieved 18 January 2019.
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