Thomasia petalocalyx

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Thomasia petalocalyx
Thomasia petalocalyx.jpg
In Great Otway National Park
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. petalocalyx
Binomial name
Thomasia petalocalyx
Flowers Thomasia petalocalyx image 01.jpg
Flowers

Thomasia petalocalyx, commonly known as paper flower, [2] is a species of flowering plant in the family Malvaceae and is endemic to southern Australia. It is a shrub with wrinkled, oblong to egg-shaped leaves and cup-shaped mauve flowers.

Contents

Description

Thomasia petalocalyx is a shrub that typically grows to 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) high, 0.5–2 m (1 ft 8 in – 6 ft 7 in) wide and has its new growth covered in star-shaped hairs. The leaves are oblong to egg-shaped, 20–40 mm (0.79–1.57 in) long and 5–13 mm (0.20–0.51 in) wide on a petiole 2–8 mm (0.079–0.315 in) long with hairy brown, wing-like stipules 8–12 mm (0.31–0.47 in) long at the base of the petioles. The leaves are covered with star-shaped hairs, and the edges are wrinkled, turned down and finely toothed. The flowers are arranged singly or in racemes of up to 5 on a red peduncle 30–40 mm (1.2–1.6 in) long near the ends of the branches. Each flower is on a pedicel 6–8 mm (0.24–0.31 in) long, with 3 bracteoles 5–6 mm (0.20–0.24 in) long at the base. The sepals are mauve and form a cup-shaped flower 10–15 mm (0.39–0.59 in) wide, the petals deep red and tiny. [2] [3] [4] [5]

Taxonomy

Thomasia petalocalyx was first formally described in 1855 by Ferdinand von Mueller and the description was published in his book Definitions of rare or hitherto undescribed Australian plants. [6] [7] The specific epithet (petalocalyx) refers to the petal-like sepals. [3]

Distribution and habitat

Paper flower grows in forest, woodland, coastal heath and on granite outcrops in the Esperance Plains, Jarrah Forest and Mallee bioregions of southern Western Australia, in the south-east of South Australia, including on Kangaroo Island, and in scattered locations in the west and south-west of Victoria, with an isolated population on Wilsons Promontory, where it is common. [2] [3] [4] [5]

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References

  1. "Thomasia petalocalyx". Australian Plant Census. Retrieved 17 February 2023.
  2. 1 2 3 "Thomasia petalocalyx". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 3 Blake, Trevor L. (2021). Lantern bushes of Australia; Thomasias & allied genera : a field and horticultural guide. Victoria: Australian Plants Society, Keilor Plains Group. pp. 46–47. ISBN   9780646839301.
  4. 1 2 Short, Philip S.; Stajsic, Val. "Thomasia petalocalyx". Royal Botanic Gardens Victoria. Retrieved 17 February 2023.
  5. 1 2 "Thomasia petalocalyx". State Herbarium of South Australia. Retrieved 17 February 2023.
  6. "Thomasia petalocalyx". Australian Plant Name Index. Retrieved 10 December 2020.
  7. von Mueller, Ferdinand (1855). Definitions of rare or hitherto undescribed Australian plants. Melbourne: Goodhugh & Tembath. pp. 2–3.