Species profile—Denhamia parvifolia
Classification
Plantae (plants) → Equisetopsida (land plants) → Celastraceae → Denhamia parvifolia
Sighting data
Species details
- Kingdom
- Plantae (plants)
- Class
- Equisetopsida (land plants)
- Family
- Celastraceae
- Scientific name
- Denhamia parvifolia L.S.Sm.
- WildNet taxon ID
- 13932
- Alternate name(s)
- small leaved denhamia
- Nature Conservation Act 1992 (NCA) status
- Vulnerable
- Environment Protection and Biodiversity Conservation Act 1999 (EPBC) status
- Vulnerable
- Conservation significant
- Yes
- Confidential
- No
- Endemicity
- Native
- Pest status
- Nil
- Short Notes
- BRI 066873
- Description
- Denhamia parvifolia is a shrub growing to 3 m tall with hairless branches and stems. It has conspicuous mottled, white bark and orange coloured roots. The leaves have petioles 0.5 to 1 mm long, the leaf blades are obovate, oblong-elliptic or elliptic. The apex is acute, mucronate or obtuse to retuse, the base is wedge-shaped, the margins range from being faintly toothed to being finely and sharply pointed and serrate, especially when young, the mature leaves having smoother edges, they are 0.5 to 1.8 (-3) cm by 0.35 to 0.9 cm wide. They are glabrous, dark green above and paler green below, the lateral venation is prominent above, but obscure or just visible below when dry. The inflorescence consists of a several-flowered raceme up to 3 cm long. Rarely with the flowers solitary. The pedicels are 2.5 to 5 mm long. The flowers are white to yellowish. The calyx lobes are 0.5 to 0.8 mm long, the petals are obtuse, 2.5 to 3.5 mm long. The fruit is a capsule that is yellowish, obovoid and is 6 to 8 mm long by 6 mm wide, 3 or rarely 4-valved. The seeds are shiny black, 1 to 2 per valve, they have an aril that becomes bright red and granular.
Denhamia parvifolia is distinguished from other species of Denhamia by its shorter leaves, less than 3 cm long (versus more than 3 cm long), and the shorter capsules, 0.6 to 0.8 cm long (versus 1 to 1.7 cm long) (Ross, 1986). - Map
- View Map
- Distribution
- Denhamia parvifolia occurs from Eidsvold to Kingaroy, and near Chinchilla. The species occurs within Allies Creek State Forest and Koko State Forest (Queensland Herbarium, 2012).
- Distributional limits
- -25.4150834, 150.5844294
-26.7484203, 151.9416667 - Range derivation
- Range derived from extent of the taxon's verified records
- Habitat
- Denhamia parviflora is found in vineforests and semi-evergreen vine thickets (softwood and brigalow scrub), , commonly on basalt-derived, brown or red soils above 300 m altitude. It is occasionally found in ecotone areas with open forest. Associated species include: Cadellia pentastylis, Acacia harpophylla, Backhousia angustifolia, Geijera salicifolia, Flindersia xanthoxyla, F. australis and Cupaniopsis parvifolia (Queensland Herbarium, 2012).
- Reproduction
- Denhamia parvifolia mainly flowers and fruits in spring and summer. (Queensland Herbarium, 2012).
- Threatening processes
- The main identified threats to Denhamia parvifolia are the fragmentation of habitat by broad scale vegetation clearing, changed fire regimes, invasion by exotic weeds and grazing pressure (ANRA, 2007; Pollock, 1997; DERM, 2010a; DERM, 2010b; DSEWPC, 2012). Additional threats include road maintenance resulting in habitat disturbance (DERM, 2010a; DERM, 2010b).
- Status notes
- Denhamia parvifolia is listed as Vulnerable under the Queensland Nature Conservation Act 1992 and Vulnerable under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999
- Management recommendations
- Regional and local priority actions to support the recovery of Denhamia parvifolia are outlined by DSEWPC (2012). A summary of these include: avoiding habitat loss, disturbance and modification (e.g. monitor known populations to identify key threats; monitor the progress of recovery, including the effectiveness of management actions and the need to adapt them if necessary; identify populations of high conservation priority); invasive weeds (e.g. identify and remove weeds in the local area, which could become a threat to Denhamia, using appropriate methods); minimising trampling, browsing or grazing (e.g. develop and implement a stock management plan for roadside verges and travelling stock routes; manage known sites to ensure appropriate grazing regimes occur); managing fire (e.g. develop and implement a suitable fire management strategy for D. parviflora); increasing conservation information (raise awareness of D. parviflora in the local community); and enabling recovery of additional sites and/or populations (DSEWPC, 2012).
Other recommended management actions are described in DERM (2010a) and DERM (2010b). - Notes
- Occurs in the following Queensland pastoral districts: Burnett, Darling Downs.
- References
- Australian Natural Resources Atlas (ANRA) (2007). Biodiversity Assessment - Brigalow Belt South. Species at risk and the Threatening Process. Department of the Environment, Water, Heritage and the Arts, Canberra. Accessed 26/06/2012. http://www.anra.gov.au/topics/vegetation/assessment.
Department of Sustainability, Environment, Water, Population and Communities (DSEWPC) (2012). Denhamia parvifolia in Species Profile and Threats Database, Department of Sustainability, Environment, Water, Population and Communities, Canberra. Accessed 26/06/2012. http://www.environment.gov.au/sprat.
Pollock, A.B. (1997). Denhamia parvifolia Species Management Profile. Department of Natural Resources, Brisbane.
Queensland Department of Environment and Resource Management (DERM) (2010a). Burnett Mary Natural Resource Management Region Back on Track Actions for Biodiversity. Department of Environment and Resource Management, Brisbane.
Queensland Department of Environment and Resource Management (DERM) (2010b). Condamine Natural Resource Management Region Back on Track Actions for Biodiversity. Department of Environment and Resource Management, Brisbane.
Queensland Herbarium (2012). Specimen label information. Queensland Herbarium. Accessed 19/01/2012.
Ross, E.M. in Stanley, T.D. and Ross, E.M. (1986). Flora of South-eastern Queensland 2: 34. - Profile author
- Ronald Booth (12/06/2012)
Other resources
- Species Profile and Threats Database (SPRAT)
- The Australasian Virtual Herbarium (AVH)
- Atlas of Living Australia
Data source
This profile data is sourced from the QLD Wildlife Data API using the Get species by ID function used under CC-By 4.0.
https://apps.des.qld.gov.au/species/?op=getspeciesbyid&taxonid=13932.
This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.
