Eucalyptus youngiana

Last updated

Large-fruited mallee
Eucalyptus youngiana.jpg
Eucalyptus youngiana in the Australian Arid Lands Botanic Garden
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. youngiana
Binomial name
Eucalyptus youngiana
flowers in Kings Park Eucalyptus youngiana KP gnangarra-12.jpg
flowers in Kings Park
flower buds EucalyptusYoungiana PerthBG-20171218-3b.jpg
flower buds
fruit Eucalyptus youngiana fruit.jpg
fruit

Eucalyptus youngiana, commonly known as large-fruited mallee, Ooldea mallee and yarldarlba, [2] is a species of mallee, less commonly a tree, that is native to arid and semi-arid areas of southern Western Australia and South Australia. It has rough, fibrous bark on some or all of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of three, red, pink or bright yellow flowers and short, broad, conical fruit.

Contents

Description

Eucalyptus youngiana is a mallee that typically grows to a height of 4 to 8 metres (13 to 26 ft), less commonly a tree to 10 m (33 ft), and forms a lignotuber. It has rough, flaky, dark grey-brown bark on part or all of the trunk and smooth, pinkish-grey to creamy bark above. Young plants and coppice regrowth have greyish green, egg-shaped to lance-shaped leaves that are 70–160 mm (2.8–6.3 in) long and 25–45 mm (0.98–1.77 in) wide. The adult leaves are the same shade of dull bluish green on both sides, lance-shaped, 85–170 mm (3.3–6.7 in) long and 15–37 mm (0.59–1.46 in) wide, tapering to a petiole 15–32 mm (0.59–1.26 in) long. The flower buds are arranged in leaf axils in groups of three on an unbranched peduncle 10–25 mm (0.39–0.98 in) long, the individual buds on pedicels 5–15 mm (0.20–0.59 in) long. Mature buds are oval, 45–60 mm (1.8–2.4 in) long and 30–45 mm (1.2–1.8 in) wide with a horn-shaped or beaked operculum 28–42 mm (1.1–1.7 in) long. Flowering occurs from June to October and the flowers are red, pink or bright yellow. The fruit is a woody, short, broad and hemispherical capsule, 15–30 mm (0.59–1.18 in) long and 33–60 mm (1.3–2.4 in) wide with coarse, longitudinal ridges. The seeds are brown, an irregular pyramid shape and 2.5–4 mm (0.098–0.157 in) long. [3] [4] [5] [6]

Taxonomy

Eucalyptus youngiana was first formally described in 1876 by Ferdinand von Mueller in his book Fragmenta phytographiae Australiae , based on specimens collected at Queen Victoria Spring by Jess Young during the Giles expedition of May 1875. [7] [8] [9] The specific epithet honours Jess Young, a member of Giles's fourth expedition, who collected the type specimen. [4] [10]

Distribution and habitat

The large-fruited mallee grows in sandy soil on flat country, often associated with Triodia species. It occurs throughout arid and semi-arid areas from north of Kalgoorlie in Western Australia through the Great Victoria Desert to Tarcoola and Bulgunnia Station in South Australia. [3] [5] [6]

Related Research Articles

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

Corymbia ficifolia, commonly known as red flowering gum, is a species of small tree that is endemic to the south-west of Western Australia. It has rough, fibrous bark on the trunk and branches, egg-shaped to broadly lance-shape adult leaves, flower buds in groups of seven, bright red, pink or orange flowers and urn-shaped fruit. It has a restricted distribution in the wild but is one of the most commonly planted ornamental eucalypts.

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

Eucalyptus microcorys, commonly known as tallowwood, is a species of medium to tall tree that is endemic to eastern Australia. It has rough, fibrous or string bark on the trunk and branches, lance-shaped to egg-shaped adult leaves, flower buds in groups of seven or nine, white to lemon-yellow flowers and conical fruit. It grows in forests near the coast of Queensland and New South Wales.

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

Eucalyptus eremophila, commonly known as the sand mallet or tall sand mallee, is a species of mallet that is endemic to semi-arid regions of Western Australia. It has smooth pale brown and greyish bark, narrow lance-shaped to elliptical adult leaves, flower buds arranged in groups of between seven and eleven with an elongated operculum, and cup-shaped to barrel-shaped fruit.

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

Eucalyptus erythrocorys, commonly known as illyarrie, red-capped gum or helmet nut gum, is a species of tree or mallee from Western Australia. It has smooth bark, sickle-shaped to curved adult leaves, characteristically large flower buds in groups of three with a bright red operculum, bright yellow to yellowish green flowers and sculptured, bell-shaped fruit.

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

Eucalyptus forrestiana, commonly known as fuchsia gum or fuchsia mallee, is a species of small tree or mallet and is endemic to an area near Esperance, Western Australia. It has smooth grey bark, narrow oblong to lance-shaped adult leaves, flower buds that are square in cross-section, red at maturity and arranged singly in leaf axils, yellow flowers and four-angled, winged fruit.

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

Eucalyptus cloeziana, commonly known as Gympie messmate or dead finish, is a species of tree that is endemic to Queensland. It has rough, flaky to fibrous bark on its trunk, smooth bark above, lance-shaped to curved adult leaves that are much paler on the lower side, flower buds in groups of seven, white flowers and hemispherical fruit.

<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>Eucalyptus megacarpa</i> Species of eucalyptus

Eucalyptus megacarpa, commonly known by its Noongar name of bullich, is a species of robust mallee or small to medium-sized tree with a scattered distribution in the forests of the south-west of Western Australia. It has smooth bark throughout, lance-shaped to curved adult leaves, flower buds in groups of three, white flowers and cup-shaped, bell-shaped or hemispherical fruit.

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

Eucalyptus eudesmioides, commonly known as mallalie, desert gum or mallabie is a species of mallee that is endemic to Western Australia. It is a rounded, bushy mallee with smooth bark, egg-shaped to heart-shaped leaves arranged in opposite pairs, club-shaped flower buds arranged in groups of three, whitish flowers and cylindrical to barrel-shaped fruit.

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

Eucalyptus luehmanniana, commonly known as the yellow top mallee ash, is a species of mallee that is endemic to a small area in New South Wales. It has smooth white bark, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven or more, white flowers and cup-shaped, urn-shaped or barrel-shaped fruit. It has a restricted distribution on poor, rocky soils near Sydney.

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

Eucalyptus pellita, commonly known as the large-fruited red mahogany, is a species of medium to tall tree that is endemic to north-eastern Queensland. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped to egg-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to conical fruit.

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

Eucalyptus planchoniana, commonly known as the needlebark stringybark or bastard tallowwood is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, stringy bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, cylindrical or barrel-shaped fruit.

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

Eucalyptus cooperiana, commonly known as the many-flowered mallee, is a species of mallee that is endemic to an area along the south coast of Western Australia. It is described as being "of striking appearance by reason of its smooth, white bark and acutely angled branchlets". It has lance-shaped adult leaves, flower buds in groups of between nine and thirteen or more, creamy yellow flowers and urn-shaped fruit.

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

Eucalyptus gamophylla, commonly known as warilu, blue-leaved mallee, twin-leaf mallee, twin-leaved mallee or blue mallee, is a species of mallee that is native to Western Australia, South Australia and the Northern Territory. It usually has smooth bark, mostly only juvenile leaves arranged in opposite pairs, flower buds in groups of three, whitish flowers and cylindrical to barrel-shaped fruit that is four-sided in cross-section.

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

Eucalyptus oldfieldii, commonly known as Oldfield's mallee, is a species of mallee or tree that is endemic to Western Australia. It has a sprawling or spreading habit, mostly smooth greyish or brownish bark, lance-shaped adult leaves, flower buds in groups of three, white flowers and conical, cup-shaped or hemispherical fruit.

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

Eucalyptus rameliana, commonly known as Ramel's mallee, is a species of low growing mallee that is endemic to desert areas of central Western Australia. It has smooth bark, broadly lance-shaped to egg-shaped adult leaves, flower buds arranged singly in leaf axils, pale yellow flowers and flattened, pyramid-shaped fruit.

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

Corymbia watsoniana, commonly known as large-fruited yellowjacket, is a species of tree that is endemic to Queensland. It has rough, tessellated bark on the trunk and branches, egg-shaped to broadly lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and barrel-shaped or urn-shaped fruit.

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

Eucalyptus buprestium, also known as the apple mallee or ball-fruited mallee, is a small mallee that is endemic to an area along the south coast of Western Australia. It has smooth bark, narrow lance-shaped adult leaves, flower buds arranged in groups of between nine and fifteen, white flowers and almost spherical fruit with a small opening.

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

Eucalyptus decurva, commonly known as the slender mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth whitish bark, lance-shaped to curved adult leaves, pendulous flower buds arranged in groups of seven, white flowers and pendulous, more or less spherical fruit.

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

Eucalyptus doratoxylon, commonly known as the spearwood mallee, spearwood or geitch-gmunt in Noongar language is a species of mallee that is endemic to Western Australia. It has smooth, powdery white bark, lance-shaped to curved adult leaves mostly arranged in opposite pairs, flower buds in groups of seven, white to pale yellow flowers and pendulous, more or less spherical fruit.

References

  1. "Eucalyptus youngiana". Australian Plant Census. Retrieved 25 January 2020.
  2. "Australian Plant Common Names Database" . Retrieved 12 April 2007.
  3. 1 2 "Eucalyptus youngiana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 "Eucalyptus youngiana (Myrtaceae) Yarldarlba, Large-fruited Mallee". Seeds of South Australia. Seed Conservation Service of South Australia. Retrieved 25 January 2020.
  5. 1 2 "Eucalyptus youngiana". Euclid: Centre for Australian National Biodiversity Research. Retrieved 25 January 2020.
  6. 1 2 Chippendale, George M. "Eucalyptus youngiana". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 25 January 2020.
  7. "Eucalyptus youngiana". APNI. Retrieved 25 January 2020.
  8. von Mueller, Ferdinand (1876). Fragmenta phytographiae Australiae. melbourne: Victorian Government Printer. pp. 5–6. Retrieved 25 January 2020.
  9. Hall, Norman (1978). Botanists of the Eucalypts. Australia: Commonwealth Scientific and Industrial Research Organisation. ISBN   0643002715.
  10. "Eucalyptus youngiana". Australian Native Plants Society. Retrieved 30 January 2018.