Persoonia nutans

Persoonia nutans, commonly known as the nodding geebung,[2] is a plant in the family Proteaceae and is endemic to part of the Sydney region in New South Wales. It is an erect to spreading shrub with linear leaves and yellow flowers on down-turned pedicels.

Nodding geebung
In Agnes Banks
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Persoonia
Species:
P. nutans
Binomial name
Persoonia nutans
Synonyms[1]
  • Linkia nutans (R.Br.) Kuntze
  • Persoonia apiculata Meisn.
  • Persoonia nutans var. apiculata (Meisn.) Benth.
  • Persoonia nutans R.Br. var. nutans
Immature drupe

Description

Persoonia nutans is an erect to spreading shrub that typically grows to a height of 0.5–1.5 m (1 ft 8 in–4 ft 11 in) and has smooth bark and young branchlets with greyish hairs. The leaves are arranged alternately, linear, 10–45 mm (0.39–1.77 in) long and 1.0–1.8 mm (0.039–0.071 in) wide with the edges curved downwards. The flowers are arranged in leaf axils or on the ends of branches in groups of up to forty on a rachis up to 250 mm (9.8 in) long that grows into a leafy shoot after flowering, each flower on a downturned pedicel 7–12 mm (0.28–0.47 in) long with a leaf at its base. The tepals are yellow, 8.5–11 mm (0.33–0.43 in) long and glabrous. Flowering mainly occurs from November to April and the fruit is a green drupe with purple markings.[2][3][4][5]

Taxonomy

Persoonia nutans was first formally described in 1810 by Robert Brown in Transactions of the Linnean Society of London.[6][7] Brown collected his specimens from near Port Jackson and near Richmond and the Nepean River. In 1991 Peter Weston and Lawrie Johnson designated the Richmond specimens as the lectotype.[4][8]

Distribution and habitat

Nodding geebung grows in woodland and forest on the Cumberland Plain between Sydney and the Blue Mountains and between Richmond in the north and Macquarie Fields in the south.[2][9]

Conservation status

Persoonia nutans is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Threatened Species Conservation Act 1995 and a recovery plan has been prepared.[9][10][11][12] The main threats to the species are loss of habitat due to land clearing, inappropriate fire regimes, habitat degradation and rubbish dumping.[11]

References
  1. "Persoonia nutans". Australian Plant Census. Retrieved 27 October 2020.
  2. Weston, Peter H. "Persoonia nutans". Royal Botanic Garden Sydney. Retrieved 27 October 2020.
  3. Weston, Peter H. "Persoonia nutans". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 27 October 2020.
  4. Weston, Peter H.; Johnson, Lawrence A.S. (1 March 1991). "Taxonomic changes in Persoonia (Proteaceae) in New South Wales". Telopea. 4 (2): 284–285. doi:10.7751/telopea19914929.
  5. Fairley & Moore, Native Plants of the Sydney region, Jacana, Sydney, 2010
  6. "Persoonia nutans". APNI. Retrieved 27 October 2020.
  7. Brown, Robert (1810). "On the Proteaceae of Jussieu". Transactions of the Linnean Society of London. 10 (1): 162. Retrieved 27 October 2020.
  8. "Persoonia nutans". APNI. Retrieved 27 October 2020.
  9. "Nodding Geebung - profile". New South Wales Government Office of Environment and Heritage. Retrieved 27 October 2020.
  10. "Archived copy" (PDF). Archived from the original (PDF) on 20 March 2011. Retrieved 21 February 2011.CS1 maint: archived copy as title (link), Department of Environment, Climate Change and Water, NSW Government
  11. "Persoonia nutans Recovery Plan" (PDF). New South Wales Government Department of the Environment and Conservation. Retrieved 27 October 2020.
  12. "SPRAT Profile Persoonia nutans - Nodding Geebung" (PDF). Australian Government Dpeartment of Agriculture, Water and the Environment. Retrieved 27 October 2020.
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