Pimelea brevifolia

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Pimelea brevifolia
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. brevifolia
Binomial name
Pimelea brevifolia
Synonyms [1]
  • Banksia brevifolia(R.Br.) Kuntze
  • Calyptrostegia brevifolia(R.Br.) C.A.Mey.

Pimelea brevifolia is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is an undershrub or shrub with erect, elliptic leaves, and heads of white flowers surrounded by four involucral bracts.

Contents

Description

Pimelea brevifolia is an undershrub or shrub that typically grows to a height of 0.1–1 m (3.9 in – 3 ft 3.4 in). The leaves are erect, elliptic, 1–16 mm (0.039–0.630 in) long and 0.5–6 mm (0.020–0.236 in) wide and sessile or on a petiole up to 0.3 mm (0.012 in) long. The flowers are borne in heads on a peduncle mostly 5–20 mm (0.20–0.79 in) long and surrounded by four egg-shaped to broadly elliptic involucral bracts 4–12 mm (0.16–0.47 in) long and 3–9 mm (0.12–0.35 in) wide. The flowers are bisexual or female, usually white and glabrous inside, the floral tube 6–12 mm (0.24–0.47 in) long. The sepals are egg-shaped, 2–4 mm (0.079–0.157 in) long, the stamens shorter than the sepals and the style usually protrudes by up to 2 mm (0.079 in) long. Flowering occurs from Jul to October. [2] [3] [4]

Taxonomy and naming

Pimelea brevifolia was first formally described in 1810 by Robert Brown in his book Prodromus Florae Novae Hollandiae et Insulae Van Diemen . [5] [6] The specific epithet (brevifolia) means "short-leaved". [7]

In 1988, Barbara Lynette Rye described two subspecies of P. brevifolia in the journal Nuytsia , and the names are accepted by the Australian Plant Census:

Distribution and habitat

Subspecies brevifolia grows in shrubland in sandy soil between Lake Grace, Albany and Israelite Bay in the Coolgardie, Esperance Plains, Jarrah Forest and Mallee bioregions, and subspecies modesta grows in sand between Wubin, Lake Grace, Coolgardie and Norseman in the Avon Wheatbelt, Coolgardie, and Mallee bioregions of south-western Western Australia. [3] [10] [13]

Conservation status

Both subspecies of Pimelea brevifolia 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. 1 2 "Pimelea brevifolia". Australian Plant Census. Retrieved 28 July 2022.
  2. ↑ Rye, Barbara L. "Pimelea brevifolia". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 28 July 2022.
  3. 1 2 3 4 Rye, Barbara L. (1988). "A revision of Western Australian Thymelaeaceae". Nuytsia. 6 (2): 255–259. Retrieved 15 July 2022.
  4. ↑ "Pimelea brevifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Pimelea brevifolia". APNI. Retrieved 28 July 2022.
  6. ↑ Brown, Robert (1810). Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805. London: Typis R. Taylor et socii. p. 359. Retrieved 28 July 2022.
  7. ↑ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 150. ISBN   9780958034180.
  8. ↑ "Pimelea brevifolia subsp. brevifolia". Australian Plant Census. Retrieved 28 July 2022.
  9. ↑ Rye, Barbara L. "Pimelea brevifolia subsp. brevifolia". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 28 July 2022.
  10. 1 2 3 "Pimelea brevifolia subsp. brevifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. ↑ "Pimelea brevifolia subsp. modesta". Australian Plant Census. Retrieved 28 July 2022.
  12. ↑ Rye, Barbara L. "Pimelea brevifolia subsp. modesta". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 28 July 2022.
  13. 1 2 3 "Pimelea brevifolia subsp. modesta". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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