Gentiana wingecarribiensis L.G.Adams (1988:172)
Wingecarribee gentian, Swamp gentian
Taxonomy & Nomenclature
Synonym/s: Gentianella wingecarribiensis (nomen nudum) [used by Silcock et al., 2019]
Conservation Status
Missing or Extinct (Low & Booth, 2023)
Last record: 2000 (Silcock et al., 2019:SM:6, 2020:7, 2021:7)
"Cryptic/enigmatic, but no plants found in past 15 years [and high degree of habitat modification]"
(Silcock et al., 2019:SM:6, 2020:7, 2021:7)
"Main threats are hydrological change from sedimentation, peat mining, peat oxidation, pine plantations, trampling by cattle and feral pigs and weed invasion (Kodela et al., 1994, NSW Scientific Committee, 2008). These threats are associated with local disappearances of the species, hence P(local) is set high, but the potential existence of a soil seed bank suggests some propensity for persistence through unfavourable periods of unknown duration. The range is unlikely to be much larger than previously known, but there are also some swamps in the west of the distribution that have not been thoroughly searched, and its small size and cryptic annual life cycle suggests a possibility that some populations remain undiscovered. Hence P(spatial) has large bounds. One confirmed and one uncertain location are modified by intensive agriculture with associated livestock and weeds, including one site severely impacted by mining. The third site is exposed to sedimentation associated with forestry with feral pig activity and cattle grazing, apparently transformed to a lesser degree than the other sites."
(Keith et al., 2017:323)
Distribution & Habitat
New South Wales, Australia
"Peat swamps - herblands with emergent shrubs"
(Silcock et al., 2019:SM:6)
"restricted to margins of two or three temperate mesotrophic mires of the Robertson plateau in southeast Australia."
(Keith et al., 2017:323)
Biology & Ecology
Hypodigm
Media
References
Adams, L. G. (1996). Gentianaceae, pp. 72-104 [89]. In: Wilson, Annette (ed.). Flora of Australia Volume 28, Gentianales. Melbourne: CSIRO Australia. xxi + 335 pp.
Colyvan, Mark et al. (1999). The treatment of uncertainty and the structure of the IUCN threatened species categories. Biological Conservation 89: 245-249.
Keith, David A., Butchart, S. H. M., Regan, H. M., Harrison, I., Ackakaya, H. R., Solow, A. R. and Burgman, M. A. (2017). Inferring extinctions I: a structured method using information on threats. Biological Conservation 214: 320-327. https://doi.org/10.1016/j.biocon.2017.07.026
Keith, David A., Chalson, Jane M. and Auld, Tony D. (1997). Assessing the status of threatened plants: A new methodology and an application to the vascular flora of New South Wales. Project No. 450, Endangered Species Program. Canberra: Biodiversity Group, Environment Australia.
Kodela, P. G., James, T. A. and Hind, P. D. (1994). Observations on the ecology and conservation status of the rare herb Gentiana wingecarribiensis. Cunninghamia 3: 535-541.
Low, Tim and Booth, Carol. (2023). GONE: Australian animals extinct since the 1960s. Invasive Species Council Inc.
Silcock, Jen L., Field, Ashley R., Walsh, Neville G. and Fensham, Roderick J. (2019). To name those lost: assessing extinction likelihood in the Australian vascular flora. Oryx 54(2): 167-177. https://doi.org/10.1017/S0030605318001357 [Supplementary Material]
Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2020). Action Plan for Australia's Imperilled Plants. Brisbane: NESP Threatened Species Recovery Hub. 339 pp.
Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2021). Action Plan for Australia's Imperilled Plants. Brisbane: NESP Threatened Species Recovery Hub. 342 pp.
https://vanishingflora.proboards.com/thread/4286/gentiana-wingecarribiensis