Pimelea brevistyla

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Pimelea brevistyla
Pimelea brevistyla - Flickr - Kevin Thiele.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. brevistyla
Binomial name
Pimelea brevistyla

Pimelea brevistyla is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is a shrub with narrowly egg-shaped leaves arranged in opposite pairs, and head-like racemes of white, tube-shaped flowers surrounded by yellowish involucral bracts.

Contents

Description

Pimelea brevistyla is a shrub that typically grows to a height of 0.3–1.5 m (1 ft 0 in – 4 ft 11 in). The leaves are narrowly egg-shaped, 7–28 mm (0.28–1.10 in) long, 2.0–3.5 mm (0.079–0.138 in) wide and more or less sessile with the edges curved downwards. The flowers are white, and borne in head-like racemes surrounded by 2, 4 or 6 involucral bracts 8–22 mm (0.31–0.87 in) long, each flower on a hairy pedicel about 1 mm (0.039 in) long. The floral tube is 6–10 mm (0.24–0.39 in) long, the sepals white and spreading, 3–6 mm (0.12–0.24 in) long and hairy on the outside. Flowering occurs from August to October. [2] [3] [4] [5] [6]

Taxonomy

Pimelea brevistyla was first formally described in 1984 by Barbara Lynette Rye in the journal Nuytsia from specimens collected in Glen Forrest in 1983. [7] The specific epithet (brevistyla) means "short style". [3]

In a later edition of the journal Nuytsia, Rye described two subspecies of P. brevistyla and the names are accepted by the Australian Plant Census:

Distribution and habitat

Subspecies brevistyla mainly grows in lateritic or granitic soil and is found on the Darling Range between Glen Forrest and Serpentine Falls in the Jarrah Forest and Swan Coastal Plain, and subspecies minor in sandy soil from Wubin to Hyden in the Avon Wheatbelt and Mallee bioregions of south-western Western Australia. [9] [10] [12] [13]

Conservation status

Both subspecies of P. brevistyla are listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [10] [13]

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References

  1. "Pimelea brevistyla". Australian Plant Census. Retrieved 1 August 2022.
  2. Rye, Barbara L. "Pimelea aquilonia". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 13 July 2022.
  3. 1 2 Rye, Barbara L. (1988). "Four new names for Pimelea species (Thymelaeaceae) represented in the Perth region". Nuytsia. 5 (1): 1–4. Retrieved 1 August 2022.
  4. "Pimelea brevistyla". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. Rye, Barbara L. "Pimelea brevistyla". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 1 August 2022.
  6. 1 2 3 Rye, Barbara L. (1988). "A revision of Western Australian Thymelaeaceae". Nuytsia. 6 (2): 240–244. Retrieved 1 August 2022.
  7. "Pimelea brevistyla". APNI. Retrieved 1 August 2022.
  8. "Pimelea brevistyla subsp. brevistyla". Australian Plant Census. Retrieved 1 August 2022.
  9. 1 2 Rye, Barbara L. "Pimelea brevistyla subsp. brevistyla". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 1 August 2022.
  10. 1 2 3 "Pimelea brevistyla subsp. brevistyla". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. "Pimelea brevistyla subsp. minor". Australian Plant Census. Retrieved 1 August 2022.
  12. 1 2 Rye, Barbara L. "Pimelea brevistyla subsp. minor". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 1 August 2022.
  13. 1 2 3 "Pimelea brevistyla subsp. minor". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.