Allocasuarina thuyoides

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Allocasuarina thuyoides
Allocasuarina thuyoides.jpg
In Cape Arid National Park
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Casuarinaceae
Genus: Allocasuarina
Species:
A. thuyoides
Binomial name
Allocasuarina thuyoides
AllocasuarinathuyoidesDistributionMap50.png
Occurrence data from AVH
Mature fruiting cone Allocasuarina thuyoides - Flickr - Kevin Thiele (1).jpg
Mature fruiting cone

Allocasuarina thuyoides, commonly known as horned sheoak, [2] is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is monoecious or dioecious shrub that has its leaves reduced to scales in whorls of five or six, the mature fruiting cones 8–20 mm (0.31–0.79 in) long containing winged seeds usually 5.0–6.0 mm (0.20–0.24 in) long.

Contents

Description

Allocasuarina thuyoides is a monoecious or dioecious, intricately-branched shrub that typically grows to a height of 0.3–2 m (1 ft 0 in – 6 ft 7 in). Its branchlets are up to 30 mm (1.2 in) long, the leaves reduced to erect, scale-like teeth 0.4–0.5 mm (0.016–0.020 in) long, arranged in whorls of five or six around the needle-like branchlets. The sections of branchlet between the leaf whorls are mostly 1–3 mm (0.039–0.118 in) long, 0.3–0.5 mm (0.012–0.020 in) wide. Male flowers are arranged in whorls of up to four 1–5 mm (0.039–0.197 in) long on the ends of branchlets, the anthers 0.4–0.6 mm (0.016–0.024 in) long. Female cones are on slender peduncles 2–7 mm (0.079–0.276 in) long, the mature cones shortly cylindrical to spherical, 8–20 mm (0.31–0.79 in) long and 8–15 mm (0.31–0.59 in) in diameter containing winged seeds 5.0–6.0 mm (0.20–0.24 in) long. [2] [3]

Taxonomy

This sheoak was first formally described in 1845 by Friedrich Anton Wilhelm Miquel who gave it the name Casuarina thuyoides in Lehmann's Plantae Preissianae . [4] [5] It was reclassified in 1982 as Allocasuarina thuyoides by Lawrie Johnson in the Journal of the Adelaide Botanic Gardens . [6] The specific epithet (thuyoides) means " Thuja -like". [7]

Distribution and habitat

Allocasuarina thuyoides is widely distributed in the south-west of Western Australia, occurring from the Murchison River south to Albany and east to Esperance, where it grows in heath on laterite and sandplains. [2] [3]

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<i>Allocasuarina paludosa</i> Species of plant

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<i>Allocasuarina paradoxa</i> Species of plant

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<i>Allocasuarina corniculata</i> Species of flowering plant

Allocasuarina corniculata is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is an erect to spreading, dioecious shrub that has more or less erect branchlets, the leaves reduced to scales in whorls of six to eleven, the mature fruiting cones 8–15 mm (0.31–0.59 in) long containing winged seeds (samaras) 3–4 mm (0.12–0.16 in) long.

<i>Allocasuarina drummondiana</i> Species of flowering plant

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<i>Allocasuarina eriochlamys</i> Species of flowering plant

Allocasuarina eriochlamys is a species of flowering plant in the family Casuarinaceae and is endemic to inland areas of Western Australia. It is a dense, erect, monoecious or dioecious shrub that has more or less erect branchlets, its leaves reduced to scales in whorls of eight to ten, the mature fruiting cones 20–45 mm (0.79–1.77 in) long containing winged seeds (samaras) 5.0–10.5 mm (0.20–0.41 in) long.

<i>Allocasuarina microstachya</i> Species of flowering plant

Allocasuarina microstachya is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is dioecious shrub that has its leaves reduced to scales in whorls of four, the mature fruiting cones 8–12 mm (0.31–0.47 in) long containing winged seeds 2.5–5.0 mm (0.098–0.197 in) long.

<i>Allocasuarina pinaster</i> Species of flowering plant

Allocasuarina pinaster, commonly known as compass bush, is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is a prickly, dioecious shrub resembling a pine tree and that has its leaves reduced to scales in whorls of four, the mature fruiting cones 14–25 mm (0.55–0.98 in) long, containing winged seeds 10–11 mm (0.39–0.43 in) long.

<i>Allocasuarina ramosissima</i> Species of flowering plant

Allocasuarina ramosissima is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is a dioecious shrub with its leaves reduced to overlapping scales in whorls of five, the mature fruiting cones sessile and 9–13 mm (0.35–0.51 in) long, containing winged seeds 4.5–5.0 mm (0.18–0.20 in) long.

<i>Allocasuarina spinosissima</i> Species of flowering plant

Allocasuarina spinosissima is a species of flowering plant in the family Casuarinaceae and is endemic to Western Australia. It is a monoecious shrub with its leaves reduced to overlapping scales in whorls of nine to eleven, the mature fruiting cones 10–23 mm (0.39–0.91 in) long, containing winged seeds 5.5–7.0 mm (0.22–0.28 in) long.

Allocasuarina tessellata is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is a dioecious shrub or tree that has more or less erect branchlets, the leaves reduced to scales in whorls of eight or nine, the mature fruiting cones 26–55 mm (1.0–2.2 in) long containing winged seeds 5.0–7.5 mm (0.20–0.30 in) long.

<i>Allocasuarina muelleriana</i> Species of plant

Allocasuarina muelleriana, commonly known as slaty sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to southern continental Australia. It is a dioecious, rarely a monoecious shrub that has branchlets up to 120 mm (4.7 in) long, the leaves reduced to scales in whorls of five to eight, the fruiting cones 14–30 mm (0.55–1.18 in) long containing winged seeds 6–9 mm (0.24–0.35 in) long.

<i>Allocasuarina monilifera</i> Species of flowering plant

Allocasuarina monilifera, commonly known as necklace sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to Tasmania. It is usually a monoecious, low-growing shrub that has branchlets up to 150 mm (5.9 in) long, the leaves reduced to scales in whorls of six to nine, the fruiting cones 15–30 mm (0.59–1.18 in) long containing winged seeds 5–6 mm (0.20–0.24 in) long.

<i>Allocasuarina pusilla</i> Species of plant

Allocasuarina pusilla, commonly known as heath oak-bush or dwarf sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern continental Australia. It is a spreading, dioecious shrub with branchlets up to 120 mm (4.7 in) long, the leaves reduced to scales in whorls of five to seven, the fruiting cones 10–15 mm (0.39–0.59 in) long containing winged seeds about 5 mm (0.20 in) long.

References

  1. ↑ "Allocasuarina thuyoides". Australian Plant Census. Retrieved 15 August 2023.
  2. 1 2 3 "Allocasuarina thuyoides". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 "Allocasuarina thuyoides". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 15 August 2023.
  4. ↑ "Casuarina thuyoides". APNI. Retrieved 15 August 2023.
  5. ↑ Miquel, Friedrich A.W. (1845). Lehmann, Johann G.C. (ed.). Plantae Preissianae. Vol. 1. Hamburg: Sumptibus Meissneri. pp. 641–642. Retrieved 15 August 2023.
  6. ↑ "Allocasuarina thuyoides". APNI. Retrieved 22 June 2023.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 324. ISBN   9780958034180.
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