Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Vulnerable
Listing and Conservation Advices Commonwealth Conservation Advice on Parsonsia larcomensis (Threatened Species Scientific Committee (TSSC), 2008agg) [Conservation Advice].
 
Recovery Plan Decision Recovery Plan not required, included on the Not Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans
Federal Register of
    Legislative Instruments
Declaration under s178, s181, and s183 of the Environment Protection and Biodiversity Conservation Act 1999 - List of threatened species, List of threatened ecological communities and List of threatening processes (Commonwealth of Australia, 2000) [Legislative Instrument].
 
State Government
    Documents and Websites
QLD:Survey of Threatened Plant Species in South-East Queensland Biographical Region (Halford, D., 1998) [Report].
State Listing Status
QLD: Listed as Vulnerable (Nature Conservation Act 1992 (Queensland): May 2014 list)
Scientific name Parsonsia larcomensis [64587]
Family Apocynaceae:Gentianales:Magnoliopsida:Magnoliophyta:Plantae
Species author J.B.Williams
Infraspecies author  
Reference Flora of Australia 26 (1996) 316.
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

Scientific name: Parsonsia larcomensis

Common name: Mt Larcom Silk Pod

Conventionally accepted as Parsonsia larcomensis (CHAH 2010).

The Mt Larcom Silk Pod is a semi-woody creeping plant growing to 5 m long that attaches to rocks or soil by roots arising from nodes along the stem. The leaves are leathery, hairless and 1.1–4.5 cm long by 1–2.2 cm wide. Leaves are rounded or heart-shaped at the base, acute or tapering to a short terminal point at the apex, green above and blue-green below. They are attached by stalks 3–7 mm long. Five to 12 white tubular flowers are borne at the ends of branches and in the angles between the leaves and stems. The tubular flower is 7.5–8 mm long with five red spots in its top portion; the tube separates at the apex into spreading to downward-curved lobes 2–3 mm long. Fruits of the species are slender, brown, cylindrical to spindle-shaped capsules 7–11 cm long and 0.5–1.1 mm wide (Qld CRA/RFA Steering Committee 1998; Williams 1996).

The Mt Larcom Silk Pod grows in the region between Rockhampton to Bundaberg in Queensland and has a range of approximately 280 km (Qld DNR 2000; Williams 1996). The species is recorded at five locations (Halford 1998; Qld CRA/RFA Steering Committee 1998; Qld DNR 2000):

  • Mt Wheeler, private land
  • Mt Larcom, private land
  • Shoalwater Bay military reserve and surrounding areas (Upper Stoney, Mingga Mountain and near Mount Parnassus)
  • State Forest 830
  • Mt Perry, Timber Reserve 157.

There is no population figures for the Mt Larcom Silk Pod. However it was described in Queensland Herbarium specimen records as common at Mount Wheeler in 1993, very common at Mingga Mountain in 2000 but scarce at Mt Larcom in 1994 (BRI Collection Records n.d.).

The Mt Larcom Silk Pod is found in open heathland and shrubland at or near the summits of mountain peaks, in shallow loamy soils on cliffs or among outcrops of acid volcanic rocks and serpentine soils at 350–750 m above sea level (Qld CRA/RFA Steering Committee 1998; Williams 1996). The species has also been recorded from riverine rainforest habitat at one location (BRI Collection Records n.d.).

At Mt Wheeler, the Mt Larcom Silk Pod is associated with Red Ironbark (Eucalyptus fibrosa), Xanthorrhoea spp. and Pimelea leptospermoides (Qld CRA/RFA Steering Committee 1998; Qld DNR 2000).

The Mt Larcom Silk Pod flowers from January to May and fruiting has been recorded from August to September. The plant is usually attached to rocks or soil by adventitious roots. This persistent creeping geophytic-lithophytic habit is unusual among Australian Parsonsia (Williams 1996).

The Mt Larcom Silk Pod can be distinguished from the Common Silk Pod (P. straminea) by its shorter adult leaves, smaller capsules and longer corolla tubes (Qld CRA/RFA Steering Committee 1998; Williams 1996).

The main potential threats to the Mt Larcom Silk Pod includes fire (Halford 1998); vegetation clearing; weed invasion; and increasing fragmentation and loss of remnants (ANRA 2009; Qld CRA/RFA Steering Committee 1998; Qld DNR 2000).

The Mt Larcom Silk Pod is thought to be susceptible to fire, incapable of regenerating following fire and post-fire persistence of the species is reliant on regeneration of soil stored seed. Too frequent fire would result in population decline, although the rocky outcrop habitat in which the species occurs may provide some protection from fire (Halford 1998).

Refer to the Commonwealth Conservation Advice (TSSC 2008agg) for information on research priorities and recovery priority actions to mitigate threats including habitat loss, disturbance and modification, weeds and fire. Raising awareness of the species and enabling recovery of additional populations are also encouraged in the Advice.

Management documents for the Mt Larcom Silk Pod can be found at the start of this profile.

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Agriculture and Aquaculture:Agriculture and Aquaculture:Land clearing, habitat fragmentation and/or habitat degradation Parsonsia larcomensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qi) [Internet].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Loss and/or fragmentation of habitat and/or subpopulations Parsonsia larcomensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qi) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Parsonsia larcomensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qi) [Internet].
Natural System Modifications:Fire and Fire Suppression:Inappropriate and/or changed fire regimes (frequency, timing, intensity) Parsonsia larcomensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qi) [Internet].
Protected status:Protected status:Lack of secure conservation land tenure Parsonsia larcomensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qi) [Internet].

Australian Natural Resources Atlas (ANRA) (2009). Biodiversity Assessment - Species at risk and their Recovery Process. [Online]. Available from: http://www.anra.gov.au/topics/vegetation/assessment/index.html. [Accessed: 24-Apr-2010].

BRI Collection Records (BRI) (undated). Queensland Herbarium specimens.

Council of Heads of Australasian Herbaria (CHAH) (2010). Australian Plant Census. [Online]. Australian National Herbarium, Australian National Botanic Gardens and Australian Biological Resources Study . Available from: http://www.anbg.gov.au/chah/apc/.

Halford, D. (1998). Survey of Threatened Plant Species in South-East Queensland Biographical Region. [Online]. Brisbane: Queensland CRA/RFA Steering Committee. Available from: http://www.daff.gov.au/rfa/regions/qld/environment/threatened-plant.

Queensland CRA/RFA Steering Committee (1998). Survey of Threatened Plant Species in South East Queensland Biogeographical Region. [Online]. Available from: http://www.daff.gov.au/rfa/regions/qld/environment/threatened-plant.

Queensland Department of Natural Resources (Qld DNR) (2000). Species Management Manual. Forest and Fauna Conservation and Ecology Section, Queensland Department of Natural Resouces.

Threatened Species Scientific Committee (TSSC) (2008agg). Commonwealth Conservation Advice on Parsonsia larcomensis. [Online]. Department of the Environment, Water, Heritage and the Arts. Available from: http://www.environment.gov.au/biodiversity/threatened/species/pubs/64587-conservation-advice.pdf.

Williams, J.B. (1996). Parsonsia. In: Flora of Australia. 28:154-196.

EPBC Act email updates can be received via the Communities for Communities newsletter and the EPBC Act newsletter.

This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Parsonsia larcomensis in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 29 Aug 2014 20:12:46 +1000.