Thomasia quercifolia

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Oak-leaf thomasia
Thomasia quercifolia flowers 02.jpg
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Thomasia
Species:
T. quercifolia
Binomial name
Thomasia quercifolia
Synonyms

Lasiopetalum quercifoliumAndrews

Habit Thomasia quercifolia.jpg
Habit
Foliage Thomasia quercifolia foliage.jpg
Foliage

Thomasia quercifolia, commonly known as oak leaved thomasia, [2] is a flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It has egg-shaped, lobed leaves with a heart-shaped base, and pink to mauve flowers.

Contents

Description

Thomasia quercifolia is a densely-branched, low shrub that typically grows to 10–30 cm (3.9–11.8 in) high and 80–100 cm (31–39 in) wide, the stems covered with rust-coloured, star-shaped hairs. The leaves are egg-shaped with a heart-shaped base, 7–30 mm (0.28–1.18 in) long and 10–25 mm (0.39–0.98 in) wide, on a petiole up to 12 mm (0.47 in) long. The leaves usually have 5 lobes, the lobes often further or toothed. Both surfaces of the leaves are covered with star-shaped hairs, more densely so on the lower surface. The flowers are arranged in groups of 2 to 8 on a raceme usually up to 30 mm (1.2 in) long on a hairy peduncle 8–10 mm (0.31–0.39 in) long with hairy, linear bracteoles 3–5 mm (0.12–0.20 in) long at the base of each flower, the flowers 5–8 mm (0.20–0.31 in) in diameter. The sepals are pink to mauve with a few coarse hairs. Flowering occurs from August to December. [2] [3] [4]

Taxonomy and naming

The species was first formally described by botanist Henry Cranke Andrews in The Botanist's Repository for New and Rare Plants in 1806. He gave it the name Lasiopetalum quercifolium Jaques Étienne Gay transferred the species to the genus Thomasia in 1861 as Thomasia quercifolia. [5] The specific epithet (quercifolia) means "oak leaved". [6]

Distribution and habitat

Oak leaved thomasia grows in coastal heath over limestone near the south coast of Western Australia, between the Walpole-Nornalup National Park and Bremer Bay in the Jarrah Forest and Warren bioregions of south-western Western Australia. [3] [2] [4]

Conservation status

Thomasia quercifolia is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [2] meaning that it is rare or near threatened. [7]

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<i>Guichenotia ledifolia</i> Species of flowering plant

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<i>Guichenotia macrantha</i> Species of flowering plant

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<i>Seringia hermanniifolia</i> Species of shrub

Seringia hermanniifolia, commonly known as crinkle-leaved firebush, is a species of flowering plant in the mallow family and is endemic to the south-west of Western Australia. It is a low-growing or prostrate, suckering shrub with hairy new growth, hairy, wavy, oblong to egg-shaped leaves and mauve to bluish flowers arranged in groups of 3 to 8.

<i>Pityrodia ternifolia</i> Species of flowering plant

Pityrodia ternifolia is a species of flowering plant in the mint family, Lamiaceae and is endemic to north-western Australia. It is an erect shrub with densely hairy stems, sticky and prickly, egg-shaped leaves, and mauve or pinkish-red, tube-shaped flowers.

<i>Thomasia angustifolia</i> Species of flowering plant

Thomasia angustifolia, commonly known as narrow-leaved thomasia, is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It has densely hairy young stems, narrowly oblong, wrinkled leaves and pinkish-purple, bell-shaped flowers.

<i>Thomasia paniculata</i> Species of shrub

Thomasia paniculata is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with heart-shaped to narrowly egg-shaped leaves and pinkish-mauve flowers.

<i>Thomasia brachystachys</i> Species of shrub

Thomasia brachystachys is a species of flowering plant in the family Malvaceae and is endemic to the Southwest Australia south-west of Western Australia. It is an open, erect shrub with egg-shaped to heart-shaped leaves and pink to mauve flowers.

<i>Guichenotia intermedia</i> Species of flowering plant

Guichenotia intermedia is a flowering plant in the family Malvaceae and is endemic to Western Australia. It is a small shrub with hairy leaves and mauve-pink flowers.

Thomasia × formosa is a species of flowering plant in the family Malvaceae and is endemic to a restricted area of the south-west of Western Australia. It is an erect, compact shrub with densely hairy branchlets, hairy, coarsely serrated, egg-shaped to elliptic or oblong leaves, and racemes of pink or purple flowers arranged in leaf axils.

Thomasia glabripetala is a species of flowering plant in the family Malvaceae and is endemic to a restricted area of the south-west of Western Australia. It is an open shrub with densely hairy branchlets, sparsely hairy, wrinkled, elliptic or oblong leaves, and racemes of purplish-pink flowers arranged in leaf axils.

<i>Thomasia macrocalyx</i> Species of grass

Thomasia macrocalyx is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect, bushy shrub with densely hairy new growth, egg-shaped leaves with a heart-shaped base and lobed or toothed edges, and groups of pale purple to mauve or white flowers.

Thomasia multiflora is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with broadly egg-shaped leaves and mauve flowers.

<i>Thomasia rugosa</i> Species of plant

Thomasia rugosa, commonly known as wrinkled leaf thomasia, is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It has wrinkled, lance-shaped to egg-shaped leaves with wavy edges, and pink to mauve flowers.

Thomasia tremandroides is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect or low, spreading shrub with many stems, flimsy, papery, egg-shaped leaves and racemes of papery, mauve to pink flowers.

Commersonia rotundifolia, commonly known as round-leaved rulingia, is a species of flowering plant in the family Malvaceae and endemic to the south-west of Western Australia. It is an upright, openly-branched shrub with elliptic to round leaves with wavy edges, and white flowers in clusters of 3 to 10.

<i>Guichenotia angustifolia</i> Species of flowering plant

Guichenotia angustifolia is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect, prostrate or climbing shrub with hairy young growth, hairy, oblong to linear leaves and pink to mauve flowers.

References

  1. ↑ "Thomasia quercifolia". Australian Plant Census. Retrieved 24 August 2022.
  2. 1 2 3 4 "Thomasia quercifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 Blake, Trevor L. (2021). Lantern bushes of Australia; Thomasias & allied genera : a field and horticultural guide. Victoria: Australian Plants Society, Keilor Plains Group. pp. 54–55. ISBN   9780646839301.
  4. 1 2 Bentham, George (1863). Flora Australiensis. London: Lovell Reeve. p. 252. Retrieved 29 August 2022.
  5. ↑ "Thomasia quercifolia". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  6. ↑ Sharr, Francis Aubi; George, Alex (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 299. ISBN   9780958034180.
  7. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 12 February 2023.
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