Woolly patersonia
Patersonia lanata near the Pink Lake
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Patersonia
Species:
P. lanata
Binomial name
Patersonia lanata
Synonyms[1]
Illustration from Robert Sweet's Flora Australasica[2]

Patersonia lanata, commonly known as woolly patersonia,[3] is a species of flowering plant in the family Iridaceae and is endemic to the south of Western Australia. It is a tufted perennial herb with sword-shaped leaves and blue-violet flowers.

Description

Patersonia lanata is a tufted perennial herb with sword-shaped leaves 150–400 mm (5.9–15.7 in) long, 2–7 mm (0.079–0.276 in) wide and is glabrous apart from woolly hairs near the edges of the leaf base. The flowering scape is 120–400 mm (4.7–15.7 in) long and the sheaths enclosing the flowers are triangular, 25–32 mm (0.98–1.26 in) long and dark brown. The petal-like sepals are bluish violet, broadly elliptic, 20–30 mm (0.79–1.18 in) long and 18–27 mm (0.71–1.06 in) wide and the stamens filaments are 4–5 mm (0.16–0.20 in) long joined for most of their length. Flowering occurs from July to November and the fruit is an oval capsule about 20 mm (0.79 in) long containing wrinkled seeds about 2.5 mm (0.098 in) long.[3][4]

Taxonomy

Patersonia lanata was first formally described in 1810 by Robert Brown in his Prodromus Florae Novae Hollandiae et Insulae Van Diemen.[5][6] The specific epithet (lanata) means "woolly", referring to the edges of the leaves, the scape, bracts and ovary.[7]

In 1986, David Alan Cooke described two forms of Patersonia lanata and the names are accepted by the Australian Plant Census:

  • Patersonia lanata f. calvata D.A.Cooke[8] has glabrous leaf margins and a more or less glabrous scape;[9]
  • Patersonia lanata R.Br. f. lanata D.A.Cooke[10] has leaf margins that have woolly brown hairs near the base and a woolly-brown scape.[11]

Distribution and habitat

Woolly patersonia grows in heath on the coastal plain of southern Western Australia between Two Peoples Bay and Israelite Bay in the Esperance Plains, Jarrah Forest and Mallee biogeographic regions.[3][4] Both forms occur in the same range, but f. calvata is less common.[9][11][12][13]

References

  1. 1 2 "Patersonia lanata". Australian Plant Census. Retrieved 26 November 2021.
  2. ↑ Sweet, Robert (1828). Flora Australasica. London: James Ridgway. p. 15. Retrieved 19 May 2022.
  3. 1 2 3 "Patersonia lanata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 Cooke, David A. "Patersonia lanata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2021.
  5. ↑ "Patersonia lanata". APNI. Retrieved 26 November 2020.
  6. ↑ Brown, Robert (1810). Prodromus Florae Novae Hollandiae et Insulae Van Diemen. London. p. 303. Retrieved 26 November 2021.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 234. ISBN 9780958034180.
  8. ↑ "Patersonia lanata f. calvata". Australian Plant Census. Retrieved 26 November 2021.
  9. 1 2 Cooke, David A. "Patersonia lanata f. calvata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2021.
  10. ↑ "Patersonia lanata f. lanata". Australian Plant Census. Retrieved 26 November 2021.
  11. 1 2 Cooke, David A. "Patersonia lanata f. lanata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2021.
  12. ↑ "Patersonia lanata f. calvata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  13. ↑ "Patersonia lanata f. lanata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
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