Eucalyptus myriadena

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Eucalyptus myriadena
Eucalyptus myriadena.jpg
Eucalyptus myriadena near Southern Cross
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. myriadena
Binomial name
Eucalyptus myriadena

Eucalyptus myriadena, also known as blackbutt, [2] is a species of mallee or tree that is native to Western Australia. It has rough, coarse flaky bark on part of the trunk, smooth bark above, linear to narrow lance-shaped adult leaves, flower buds in groups of between nine and thirteen, white flowers and narrow cylindrical to barrel-shaped fruit. It is widely distributed in the wheatbelt and goldfield areas of the state.

Contents

Description

Eucalyptus myriadena is a mallee or tree that typically grows to a height of 3 to 12 metres (10 to 39 ft) and forms a lignotuber. It has rough, flaky bark on about half the lower part of the trunk, smooth bronze-grey and coppery bark above. Adult leaves are arranged alternately, linear to narrow lance-shaped, the same shade of very glossy green on both sides, 50–100 mm (2.0–3.9 in) long and 6–12 mm (0.24–0.47 in) wide, tapering to a petiole 5–10 mm (0.20–0.39 in) long and with a finely pointed apex. The side-veins are usually visible but the other veins are usually obscured by many island oil glands. The flower buds are arranged in groups of between nine and thirteen on an unbranched peduncle 5–14 mm (0.20–0.55 in) long, the individual buds on pedicels 1–4 mm (0.039–0.157 in) long. Mature buds are narrow cylindrical, 3–7 mm (0.12–0.28 in) long and 1.5–3 mm (0.059–0.118 in) wide with a conical to rounded operculum. It blooms between November and April producing white flowers. The fruit is a woody, narrow cylindrical to barrel-shaped capsule 3–6 mm (0.12–0.24 in) long and 3–4 mm (0.12–0.16 in) wide with the valves enclosed below the rim. The pale golden-brown seeds have a flattened ovoid shape and are 0.5–1.3 mm (0.020–0.051 in) long. [3] [4] [5]

Taxonomy and naming

This species was first formally described by the botanist Ian Brooker in 1981 in the journal Brunonia . [6] The specific epithet is taken from the Greek myri- meaning 'many' and adena meaning 'glands' in reference to the high number of oil glands in the leaves of the plant. [3]

In 1993, Ian Brooker described two subspecies and the names have been accepted by the Australian Plant Census: [7]

Eucalyptus myriadena is part of the subgenus Symphyomyrtus section Dumaria in a sub-group of nine closely related species called series Ovulares. The rough barked members of this series include E. myriadena, E. aequioperta , E. brachycorys , E. baudiniana and E. ovularis . The smooth barked members include E. cyclostoma , E. cylindrocarpa , E/ exigua and E. oraria . [10]

Distribution

This eucalypt is found on plains and low rises and around clay flats and salt lakes and swamps in the Mid West, Wheatbelt and Goldfields-Esperance region of Western Australia where it grows in gravelly sandy-clay-loam soils. [4] It has a scattered distribution from Coorow in the north west to Ravensthorpe in the south extending to Coolgardie in the east. [3]

Eucalyptus myriadena is part of open woodland communities occurring as part of the overstorey along with other trees and mallees including; E. salmonophloia , E. loxophleba , E. urna , E. calycogona , E. yilgarnensis , E. celastroides and E. vegrandis . Associated species in the variable understorey includes Rhagodia drummondii , Enchylaena lanata , E. tomentosa , Sclerolaena diacantha , Atriplex paludosa , A. vesicaria , Austrostipa elegantissima , Actinobole uliginosum , Eremophila decipiens , Scaevola spinescens , Lycium australe , Melaleuca acuminata , M. lateriflora , M. lanceolata , M. pauperiflora and Maireana erioclada . [2]

Use in horticulture

The tree is available commercially in sapling or seed form. [11] The species is drought tolerant and can cope with saline soils. [3] It is also planted as an oil mallee to harvest to obtain Eucalyptus oil. [12]

See also

Related Research Articles

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<i>Eucalyptus oleosa</i> Species of plant

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<i>Eucalyptus leptopoda</i> Species of eucalyptus

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<i>Eucalyptus arachnaea</i> Species of eucalyptus

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<i>Eucalyptus baudiniana</i> Species of eucalyptus

Eucalyptus baudiniana is a tree, rarely a mallee, that is endemic to Western Australia. It has rough bark on its trunk, smooth brownish bark above, narrow lance-shaped to curved adult leaves, oval buds in groups of seven to fifteen, white flowers and barrel-shaped fruit.

<i>Eucalyptus calycogona</i> species of plant in Australia

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<i>Eucalyptus capillosa</i> Species of eucalyptus

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<i>Eucalyptus gittinsii</i> Species of eucalyptus

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<i>Eucalyptus phaenophylla</i> Species of eucalyptus

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Eucalyptus phenax, commonly known as green dumosa mallee or white mallee, is a species of mallee that is endemic to southern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and cup-shaped to cylindrical fruit.

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<i>Eucalyptus aequioperta</i> Species of eucalyptus

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<i>Eucalyptus celastroides</i> Species of eucalyptus

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<i>Eucalyptus crucis</i> Species of grass

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<i>Eucalyptus densa</i> Species of eucalyptus

Eucalyptus densa is a species of mallee or mallet that is endemic to Western Australia. It has smooth greyish bark that is shed in curly strips, linear to narrow lance-shaped adult leaves, long, spindle-shaped flower buds in groups of seven or nine, pale yellow or lemon-coloured flowers and conical, cylindrical or barrel-shaped fruit.

References

  1. "Eucalyptus myriadena". Australian Plant Census. Retrieved 11 November 2019.
  2. 1 2 "Eucalyptus myriadena (Blackbutt) Woodland". Wheatbelt Woodlands. Department of Environment and Conservation. Retrieved 20 November 2018.
  3. 1 2 3 4 "Eucalyptus myriadena". Euclid. CSIRO. Retrieved 20 November 2018.
  4. 1 2 "Eucalyptus myriadena". FloraBase . Western Australian Government Department of Parks and Wildlife.
  5. Chippendale, George M. "Eucalyptus myriadena". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 11 November 2019.
  6. "Eucalyptus myriadena". Australian Plant Name Index. Retrieved 11 November 2019.
  7. 1 2 Brooker, M. Ian H.; Hopper, Stephen (1993). "New series, subseries, species and subspecies of Eucalyptus (Myrtaceae) from Western Australia and from South Australia". Nuytsia. 9 (1): 61–62. Retrieved 11 November 2019.
  8. "Eucalyptus myriadena subsp. myriadena". Australian Plant Census. Retrieved 11 November 2019.
  9. "Eucalyptus myriadena subsp. parviflora". Australian Plant Census. Retrieved 11 November 2019.
  10. "Eucalyptus baudiniana". Euclid. CSIRO . Retrieved 19 November 2018.
  11. "Eucalyptus myriadena". Westgrow Farms Trees. Retrieved 20 November 2018.
  12. "Planting detail". Oil Mallee Australia. Retrieved 20 November 2018.