Corymbia cadophora

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Twinleaf bloodwood
Corymbia cadophora.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. cadophora
Binomial name
Corymbia cadophora
Synonyms [1]
  • Eucalyptus cadophora(K.D.Hill & L.A.S. Johnson) Brooker
  • Eucalyptus perfoliata R.Br. ex Benth.
Flower buds Corymbia cadophora buds.jpg
Flower buds

Corymbia cadophora, commonly known as twinleaf bloodwood, [2] is a species of small, straggly tree that is endemic to the Kimberley region of Western Australia. It has rough bark on the trunk and branches, a crown of sessile, egg-shaped or lance-shaped leaves joined in opposite pairs, flower buds mostly arranged in groups of seven, creamy white to pink or red flowers and urn-shaped to barrel-shaped fruit.

Contents

Description

Corymbia cadophora is a tree, usually of poor form, that typically grows to a height of 2 to 8 metres (7 to 26 ft) and forms a lignotuber. It has thick, rough, greyish brown, tessellated bark on the trunk and branches. Young plants and coppice regrowth have leaves that are about 80 mm (3.1 in) long, 40 mm (1.6 in) wide and arranged in opposite pairs. The crown is composed of juvenile leaves that are sessile, the same shade of dull green on both sides, egg-shaped to lance-shaped, 95–255 mm (3.7–10.0 in) long, 30–86 mm (1.2–3.4 in) wide and arranged in opposite pairs with their bases joined. The flower buds are arranged on the ends of branchlets on a branched peduncle 5–30 mm (0.20–1.18 in) long, each branch of the peduncle with buds usually in groups of seven on pedicels up to 5 mm (0.20 in) long. Mature buds are oval to pear-shaped, 8–18 mm (0.31–0.71 in) long and 6–11 mm (0.24–0.43 in) wide with a rounded, pointed or beaked operculum. Flowering occurs from January to February or April, or from June or August to October and the flowers are creamy white to pinkish or red. The fruit is a woody urn-shaped to barrel-shaped capsule 30–42 mm (1.2–1.7 in) long and 23–30 mm (0.91–1.18 in) wide with the valves enclosed in the fruit. [2] [3] [4]

Taxonomy and naming

Eucalyptus cadophora was first formally described in 1995 by the botanists Kenneth Hill and Lawrence Alexander Sidney Johnson in the journal Telopea . [3] [5] In the same journal, Hill and John described two subspecies and in 2007 Russell Barrett described a further subspecies. The names of the three subspecies have been accepted by the Australian Plant Census:

The specific epithet (cadophora) is derived from Greek kados meaning "a vase or wine-jar" and phoros "bearing", referring to the shape of the fruit. The epithet plianthus is from Greek pleios meaning "more" and anthos meaning "a flower" referring to the more numerous flowers, and polychroma from Greek meaning "many" and "coloured", referring to the variation in flower colour. [3]

Distribution and habitat

Twin-leaf bloodwood is endemic to the Kimberley region of Western Australia where it is found on rocky slopes and hills and dunes and on floodplains where it grows on sandy clay loam or loamy soils over or around basalt, dolerite, sandstone and quartzite. [4] Subspecies cadophora is widespread and locally abundant from near Derby to near Fitzroy Crossing and the Prince Regent River area, growing in low, open shrubland. Subspecies pliantha is only known from a small area south of Kununurra where it grows in low, open, grassy woodland and subspecies polychroma is only known from a small area in the Ragged Range, growing with Triodia species. [2] [3] [8]

Conservation status

Subspecies cadophora and pliantha are classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife [7] [10] but subspecies polychroma is classified as "Priority One", [12] meaning that it is known from only one or a few locations which are potentially at risk. [13]

See also

Related Research Articles

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

Corymbia ptychocarpa, commonly known as swamp bloodwood or spring bloodwood, is a species of tree that is endemic to northwestern Australia. It has rough bark on the trunk and branches, broadly lance-shaped adult leaves, flower buds in groups of seven, creamy yellow, pink or red flowers, and barrel-shaped, ribbed fruit.

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.

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

Corymbia zygophylla, commonly known as the Broome bloodwood, is a species of small tree or a mallee that is endemic to Western Australia. It has rough, tessellated to fibrous bark on the trunk and branches, a crown of juvenile heart-shaped to lance-shaped, stem-clasping leaves, flower buds in groups of three or seven, white flowers and urn-shaped to shortened spherical fruit.

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

Corymbia abbreviata, also known as scraggy bloodwood, is a species of straggly tree that is native to Western Australia and the Northern Territory. It has rough bark, a crown of stiff leaves arranged in opposite pairs, flower buds usually in crowded groups on the ends of branchlets and urn-shaped fruit.

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

Corymbia arenaria, commonly known as bundah bundah or black bloodwood, is a species of tree that is endemic to the northern Kimberley region of Western Australia. It has rough bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flower and spherical urn-shaped fruit.

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

Corymbia cliftoniana is a species of tree that is endemic to northern Australia. It has thick, rough, tessellated bark on the trunk and branches, narrow lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and shortened spherical fruit.

Corymbia dendromerinx, commonly known as ghost gum, is a species of tree that is endemic to the south-western Kimberley region of Western Australia. It has smooth bark, sometimes with a stocking of rough bark near the base, a crown of variably-shaped leaves, flower buds mostly in groups of seven, creamy white flowers and barrel-shaped, cylindrical or cup-shaped fruit.

Corymbia deserticola is a species of straggly tree, a mallee or a shrub that is native to Western Australia and the Northern Territory. It has rough, tessellated bark on the trunk and branches, mostly sessile, heart-shaped leaves arranged in opposite pairs, flower buds in groups of seven on each branch of a peduncle, creamy yellow flowers and urn-shaped to shortened spherical fruit.

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

Corymbia dichromophloia, commonly known as small-fruited bloodwood, variably-barked bloodwood or gum-topped bloodwood, is a species of tree that is endemic to northern Australia. It has smooth white bark sometimes with flaky bark on the trunk, lance-shaped adult leaves, flower buds usually in groups of seven, creamy white flowers and urn-shaped fruit.

Corymbia disjuncta is a species of tree that is endemic in northern Australia. It has rough bark on some or all of the trunk, then a clear separation to smooth bark, a crown of intermediate and adult, heart-shaped to egg-shaped leaves, flower buds mostly in groups of seven, creamy white flowers and cylindrical to barrel-shaped or 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 ferruginea</i> Species of plant

Corymbia ferruginea, commonly known as rusty bloodwood, is a species of tree that is endemic to northern Australia. It has rough, tessellated bark on the trunk and branches, a crown of sessile juvenile leaves, flower buds in groups of three or seven, pale creamy yellow flowers and urn-shaped fruit.

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

Corymbia foelscheana, commonly known as 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 grandifolia</i> Species of plant

Corymbia grandifolia, commonly known as cabbage gum, large-leaved cabbage gum and paper-fruited bloodwood, is a species of tree that is endemic to northern Australia. It has smooth bark, egg-shaped to broadly elliptic to lance-shaped adult leaves, flowers buds in groups of three or seven, creamy white flowers and cup-shaped to cylindrical fruit.

Corymbia pachycarpa, commonly known as urn-fruited bloodwood, mawurru, yilanggi or warlamarn, is a species of stunted tree or mallee that is endemic to northern Australia. It has thick, tessellated bark on the trunk and branches, a crown of heart-shaped, egg-shaped or lance-shaped leaves, flower buds in groups of three or seven, white flowers and urn-shaped to barrel-shaped fruit.

Corymbia papillosa, commonly known as Maningrida bloodwood, is a species of small, stunted tree that is endemic to northern Australia. It has rough, tessellated bark on the trunk and branches, a crown of thin, oblong to elliptical leaves, flower buds in groups of seven, white flowers and urn-shaped to barrel-shaped fruit.

Corymbia paractia, commonly known as Cable Beach ghost gum, is a species of low-growing tree that is endemic to the Kimberley region of Western Australia. It has smooth white to pale grey bark, sometimes with rough bark near the base of the trunk, lance-shaped adult leaves, flower buds in groups of three or seven, creamy white flowers and cup-shaped, barrel-shaped or cylindrical fruit.

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

Corymbia setosa, commonly known as 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 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.

Corymbia torta is a species of tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, creamy white flowers and cup-shaped, cylindrical or barrel-shaped fruit.

References

  1. 1 2 "Corymbia cadophora". Australian Plant Census. Retrieved 1 February 2020.
  2. 1 2 3 "Corymbia cadophora subsp. cadophora". Euclid: Centre for Australian National Biodiversity Research. Retrieved 5 June 2020.
  3. 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): 345–349. doi: 10.7751/telopea19953017 .
  4. 1 2 "Corymbia cadophora". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Corymbia cadophora". APNI. Retrieved 1 February 2020.
  6. ↑ "Corymbia cadophora subsp. cadophora". Australian Plant Census. Retrieved 1 February 2020.
  7. 1 2 "Corymbia cadophora subsp. cadophora". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  8. 1 2 3 4 Barrett, Russell L. (2007). "Corymbia cadophora subsp. polychroma (Myrtaceae); a new subspecies from the east Kimberley region of Western Australia" (PDF). Nuytsia. 17: 31–36. Retrieved 1 February 2020.
  9. ↑ "Corymbia cadophora subsp. pliantha". Australian Plant Census. Retrieved 1 February 2020.
  10. 1 2 "Corymbia cadophora subsp. pliantha". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. ↑ "Corymbia cadophora subsp. polychroma". Australian Plant Census. Retrieved 1 February 2020.
  12. 1 2 "Corymbia cadophora subsp. polychroma". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  13. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 1 February 2020.
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