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Species profile—Rutidosis glandulosa

Classification

Plantae (plants) → Equisetopsida (land plants) → Asteraceae (sunflower) → Rutidosis glandulosa

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Species details

Kingdom
Plantae (plants)
Class
Equisetopsida (land plants)
Family
Asteraceae (sunflower)
Scientific name
Rutidosis glandulosa A.E.Holland
WildNet taxon ID
22335
Nature Conservation Act 1992 (NCA) status
Near threatened
Back on Track (BoT) status
Low
Conservation significant
Yes
Confidential
No
Endemicity
Native
Pest status
Nil
Short Notes
BRI 137123, status annotated by author
Description
Rutidosis glandulosa is an erect or ascending herb with a woody base. The stems are often branched from the base, and are 13 to 30 cm long, covered with dense glandular hairs of various lengths (very short to longer). The leaves are sessile, linear to narrowly obovate, 9 to 70mm long and 1.5 to 5 mm wide, acute and apiculate at apex. The leaf margins are entire and usually recurved with both surfaces densely glandular hairy. The inflorescences occur as hemispherical capitulums which are 9 to 21 mm in diameter with 30 to 70 florets. There are several rows of involucral bracts; the outer involucral bracts are golden brown, sessile, ovate, 1.5 to 7 mm long and 2 to 4 mm wide, acute and ciliate at the apex. The inner bracts are similar but smaller than the outer ones. They are lanceolate to linear, 5 to 8 mm long by 1 to 2 mm wide, with the lower part claw-like. The florets are equal to or longer than the bracts, mainly bisexual, with a few female outer florets. The corolla is 4 to 5.5 mm long, yellow and glabrous. The cypselas are obovoid, truncate at the apex, 1 to 1.4 mm long by 0.5 to 0.7 mm wide, dark brown, glabrous and shiny. The surface is covered with large translucent papillae. The seeds are 1mm by 0.5 mm, dark brown and glabrous (Barker, 1997, Holland, 1999).
Rutidosis glandulosa closely resembles R. murchisonii but differs mainly in the dense covering of glandular hairs. It is also distinguished by the involucral bracts which are ciliate at the apex. R. murchisonii has woolly hairs at least on the lower surface of the leaf and lacks glandular hairs; the involucral bracts are entire (Holland, 1999). The distribution of the two species overlap between Roma and Chinchilla (Holland, 1999).
Distribution
Rutidosis glandulosa is known from approximately 15 populations across six distinct localities. The species occurs as far north as the Blackdown Tableland National Park, where 5 populations have been recorded. There is also one population just south on the Planet Downs Pastoral Holding. Other locations include Carnarvon Gorge National Park (1 population) and just south on the Carnarvon Range ('Saddler Springs) (1 population); Gwambagwine (2 populations); Barakula State Forest (near Chinchilla) (3 populations) and Thulimbah (near Stanhope) (1 population). The Thulimbah population has not been relocated and has probably been destroyed (Barker 1997; Holland, 1999).
Distributional limits
-23.7883323, 148.0002924
-28.5817441, 151.9177672
Range derivation
Range derived from extent of the taxon's verified records
Habitat
Rutidosis glandulosa generally occurs on sandy or gravelly well drained soil in grassy open eucalypt woodland. Around Blackdown National Park, R. glandulosa was observed growing in open forest dominated by Eucalyptus interstans, E. sphaerocarpa and Angophora leiocarpa. In Carnarvon Gorge National Park the species was recorded within a very dense woodland dominated by Corymbia clarksoniana, Eucalyptus crebra and Callitris glaucophylla with a dense understorey composed of eucalypt saplings, Petalostigma pubescens, Cassinia laevis, Acacia pustula, A. leiocalyx and ground layer dominated by grasses and Vittadinia sp. At Gwambagagwine it was recorded within spinifex heathland with scattered trees of Angophora leiocarpa, Corymbia bunites, Allocasuarina inophloia, Lysicarpus and Xylomelum overlying sandstone, skeletal soil. The Barakula State forest R. glandulosa populations were recorded in open forest dominated by Corymbia citriodora, Eucalyptus crebra, Allocasuarina luehmannii with herb understorey on fine sandy-silty loam over clay (Queensland Herbarium, 2011).
Behaviour
Rutidosis glandulosa appears to be able to colonize disturbed areas, which includes gravel pits and roadsides (Barker, 1997).
Reproduction
Rutidosis glandulosa has been recorded flowering and fruiting in February, March, May-June, September, November and December (Queensland Herbarium, 2011).
Threatening processes
Possible threatening processes include destruction of habitat, inappropriate grazing regimes, weed invasion and inappropriate fire regimes (Barker, 1997).
Status notes
Currently listed as Near Threatened under the Queensland Nature Conservation Act 1992. The population at Barakula composed fewer than 50 plants at the time of collection in 1979, growing alongside a forestry track. The Thulimbah population has not been relocated. The populations at Gwambagwine and Blackdown Tableland consist of several hundred plants (Holland, 1999) There is no information on the population status of R. glandulosa within Carnarvon National Park (Queensland Herbarium, 2011).
Management documents
Barker M (1997). Rutidosis sp. (Blackdown Tableland) Species Management Profile, Department of Natural Resources, Queensland.
Management recommendations
Barker (1997) outlines five management actions for the protection of Rutidosis glandulosa and its habitat which include; establishment of protective buffers in areas of R. glandulosa (0.25 ha) which excludes clearing; evaluation of the impact of timber harvesting and operations within R. glandulosa habitat; control and eradication of pasture grasses (including Buffel grass (Cenchrus ciliaris); monitoring the impacts of grazing and adjust accordingly to prevent impacts; in areas of R. glandulosa follow fire management guidelines (Barker, 1997).
Notes
Occurs in the Darling Downs, Leichardt and Maranoa Pastoral Districts (Bostock and Holland, 2010). Previously known as Rutidosis sp. (Blackdown Tableland)
References
Barker, M. (1997). Rutidosis sp. (Blackdown Tableland) Species Management Profile, Department of Natural Resources, Queensland.
Bostock, P.D. and Holland, A.E. (eds) (2010). Census of the Queensland Flora 2010. Queensland Herbarium, Department of Environment and Resource Management, Brisbane.
Holland, A.E. (1999). A new species and a new combination in Rutidosis (Gnaphalieae; Asteraceae). Austrobaileya 5 (3): 565-572.
Queensland Herbarium (2011). Specimen label information. Queensland Herbarium. Accessed 12/12/2011.
Profile author
Lynise Wearne (09/07/2012)

Other resources

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=22335

This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
7 September 2021
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