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Species profile—Oldenlandia gibsonii

Classification

Plantae (plants) → Equisetopsida (land plants) → RubiaceaeOldenlandia gibsonii

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Species details

Kingdom
Plantae (plants)
Class
Equisetopsida (land plants)
Family
Rubiaceae
Scientific name
Oldenlandia gibsonii Halford
WildNet taxon ID
21788
Superseded by
Scleromitrion gibsonii (04/05/2021)
Conservation significant
No
Confidential
No
Endemicity
Exotic
Pest status
Nil
Short Notes
status annotated by author
Description
Oldenlandia gibsonii is a woody densely intricately branched herb that grows to 1m in height. The mature stems have thin, greyish papery bark. The branchlets have small stiff, bristly hairs and the axillary branchlets are short and persist after the leaves have fallen, giving the branches a spiny appearance. Leaves are arranged opposite each other and are narrowly oblong to elliptic in shape, 3-7mm long by 1-2mm wide, and lack a leaf stalk. On older branches, leaves are appear to be clustered due to the short branchlets. The leaf margins are recurved when dry. The upper leaf surface is darker in colour and hairless or covered in minute hairs. The lower leaf surface is paler, with a prominent midrib and is hairless or has small bristly hairs.
The flowers occur in the leaf axils at the very end of the branches. They grow singly from the point where the leaf joins the stem. Each flower is on a slender stalk (pedicel), 1-3mm long and hairless or with sparse bristly hairs. The tubular body of the flower is 4--5mm long and cream coloured with a lilac tinge and faint lilac blotches in the throat. The petal-like lobes at the opening of the tube are triangular in shape and 4-5mm long. The fruit is almost globular in shape, 2mm in diameter and is hairless or has sparse hairs. The capsule has a rounded beak about 1mm long at the tip. The beak does not protrude above the spreading calyx lobes around the top of the capsule. The capsules contain numerous seeds that are light brown, 0.5mm long and depressed obconical or irregular polygonal in shape.
Oldenlandia gibsonii is related to O. polyclada which, however, does not occur in the area. (Halford 1999)
Map
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Distribution
Oldenlandia gibsonii is only found in an area west of Miriam Vale in central Queensland. (Halford 1999; Herbrecs 2008)
Distributional limits
-24.2834203, 151.2094011
-24.2917537, 151.2260678
Range derivation
Range derived from extent of the taxon's verified records
Habitat
Oldenlandia gibsonii occurs in Araucarian microphyll vinforest and dry rainforest. It grows in hilly terrain, on steep slopes and on brown or reddish-brown loam soils. (Halford 1999)
Reproduction
Oldenlandia gibsonii flowers in May and November. Fruits have been recorded in April, November and December. (Halford 1999)
Notes
Contributors: Ailsa Holland, Mellisa Mayhew 19/06/2009
References
Halford, D.A. (1999). Oldenlandia gibsonii (Rubiaceae: Hedyotideae), a new species from south east Queensland. Austrobaileya 5(2): 337.
Herbrecs (2008). Oldenlandia gibsonii, in BriMapper version 2.12. Queensland Herbarium. Accessed 22/10/2008.
Profile author
Ailsa Holland (19/06/2009)

Other resources

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=21788.

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
20 May 2024