Lasiopetalum rotundifolium

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Lasiopetalum rotundifolium
Lasiopetalum rotundifolium.jpg
Status DECF R.svg
Declared rare  (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Lasiopetalum
Species:
L. rotundifolium
Binomial name
Lasiopetalum rotundifolium

Lasiopetalum rotundifolium is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect to spreading shrub with hairy young stems, round leaves with a heart-shaped base, and pink and dark red flowers.

Contents

Description

Lasiopetalum rotundifolium is an erect to spreading shrub, typically 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) high and 0.6–0.8 mm (0.024–0.031 in) wide, its young stems covered with star-shaped hairs. The leaves are more or less round with a heart-shaped base, 6–24 mm (0.24–0.94 in) long and wide on a petiole 2.4–4.5 mm (0.094–0.177 in) long. The lower surface of the leaf is a lighter shade of green and is densely covered with star-shaped hairs. The flowers are borne in clusters of nine to fourteen 26–42 mm (1.0–1.7 in) long on a peduncle 8.5–15 mm (0.33–0.59 in) long, each flower on a pedicel 3–6 mm (0.12–0.24 in) long with egg-shaped to elliptic bracts 3.5–5 mm (0.14–0.20 in) long at the base and bracteoles 3.6–11 mm (0.14–0.43 in) long below the base of the sepals. The sepals lobes are narrowly egg-shaped and 5.1–6.5 mm (0.20–0.26 in) long, pinkish-mauve and green with a dark red patch. There are no petals, and the anthers are 1.7–1.8 mm (0.067–0.071 in) long on filaments 0.4–0.6 mm (0.016–0.024 in) long. Flowering occurs from September to December. [2] [3] [4]

Taxonomy

Lasiopetalum rotundifolium was first formally described in 1974 by Susan Paust in the journal Nuytsia from specimens collected from near New Norcia by Charles Gardner in 1947. [4] [5] The specific epithet (rotundifolium) means "almost circular leaves". [4]

Distribution and habitat

This lasiopetalum grows in shrubby or heathy woodland near Pingelly and Narrogin but is no longer found near the type location. [2] [3]

Conservation status

Lasiopetalum rotundifolium is listed as "threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [3] meaning that it is in danger of extinction. [6]

Related Research Articles

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Lasiopetalum adenotrichum is a species of flowering plant in the family Malvaceae and is endemic to the Fitzgerald River National Park in the south of Western Australia. It is an erect shrub with hairy foliage, narrow egg-shaped to lance-shaped leaves and groups of white to cream-coloured and dark reddish-purple flowers.

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<i>Lasiopetalum bracteatum</i> Species of plant

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Lasiopetalum compactum, is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect shrub with leathery, narrowly oblong leaves and cymes of white to pinkish flowers.

<i>Lasiopetalum drummondii</i> Species of plant

Lasiopetalum drummondii is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect, slender shrub with many densely hairy stems, egg-shaped or oblong leaves and white, pink and red flowers.

Lasiopetalum ferraricollinum is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an upright shrub with densely hairy stems, narrow egg-shaped to oblong leaves and white to cream-coloured and dark red flowers.

<i>Lasiopetalum glabratum</i> Species of shrub

Lasiopetalum glabratum is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect shrub with densely hairy young stems, egg-shaped leaves and pale mauve-pink reddish-purple flowers.

Lasiopetalum lineare is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect shrub with densely hairy young stems, linear leaves and bright pink and dark red flowers.

Lasiopetalum membranaceum is a species of flowering plant in the family Malvaceae and is endemic to near-coastal areas of south-western Western Australia. It is an erect, spreading shrub or subshrub with hairy young stems, egg-shaped leaves and mauve-pink and dark red flowers.

<i>Lasiopetalum molle</i> Species of shrub

Lasiopetalum molle, commonly known as soft leaved lasiopetalum, 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 spreading subshrub or shrub with hairy stems, thick and stiff egg-shaped leaves and pink flowers.

Lasiopetalum monticola is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect, slender or straggling shrub with densely hairy branchlets, leaves and flowers, egg-shaped leaves and pink, cream-coloured or white flowers.

<i>Lasiopetalum ogilvieanum</i> Species of shrub

Lasiopetalum ogilvieanum is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an open, spindly or rounded shrub with rusty-hairy young stems, narrowly egg-shaped to narrowly elliptic leaves and white or pink and dark red flowers.

<i>Lasiopetalum oldfieldii</i> Species of shrub

Lasiopetalum oldfieldii 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 rusty-hairy young stems, egg-shaped to narrowly egg-shaped leaves and pink and dark red flowers.

<i>Lasiopetalum pterocarpum</i> Species of plant

Lasiopetalum pterocarpum, commonly known as wing-fruited lasiopetalum, is a species of flowering plant in the family Malvaceae and is endemic to a restricted area in the south-west of Western Australia. It is an open shrub with many densely hairy stems, egg-shaped and lobed leaves and pink and dark red flowers.

<i>Lasiopetalum trichanthera</i> Species of plant

Lasiopetalum trichanthera is a species of flowering plant in the family Malvaceae and is endemic to a restricted area in the south-west of Western Australia. It is an erect to straggling, sticky shrub with many hairy stems, egg-shaped leaves and bright pink and dark red flowers.

<i>Lasiopetalum venustum</i> Species of plant

Lasiopetalum venustum is a species of flowering plant in the family Malvaceae and is endemic to a restricted area in the south-west of Western Australia. It is an erect shrub with hairy stems, egg-shaped, three-lobed leaves and pink and dark red 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.

References

  1. "Lasiopetalum rotundifolium". Australian Plant Census. Retrieved 12 April 2022.
  2. 1 2 Shepherd, Kelly A.; Wilkins, Carolyn F. (2018). "A taxonomic revision of species with a petaloid epicalyx bract allied to Lasiopetalum bracteatum (Malvaceae: Byttnerioideae)" (PDF). Nuytsia. 29: 174–176. Retrieved 12 April 2022.
  3. 1 2 3 "Lasiopetalum rotundifolium". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 3 Paust, Susan (1974). "Taxonomic studies in Thomasia and Lasiopetalum (Sterculiaceae)". Nuytsia. 1 (4): 356. Retrieved 12 April 2022.
  5. "Lasiopetalum rotundifolium". APNI. Retrieved 12 April 2022.
  6. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 12 April 2022.