Caladenia actensis
Canberra spider orchid | |
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Caladenia actensis growing on Mount Majura in the ACT | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Orchidoideae |
Tribe: | Diurideae |
Genus: | Caladenia |
Species: | C. actensis
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Binomial name | |
Caladenia actensis | |
Synonyms[1] | |
Arachnorchis actensis (D.L.Jones & M.A.Clem.) D.L.Jones & M.A.Clem. |
Caladenia actensis, commonly known as the Canberra spider orchid,
Description
Caladenia actensis is a terrestrial,
Taxonomy and naming
Caladenia actensis was first formally described by David L. Jones and Mark Clements in 1999 and the description was published in The Orchadian from a specimen collected on Mount Ainslie.[5] The specific epithet (actensis) is derived from the abbreviation of Australian Capital Territory (act) with the Latin ending "-ensis" meaning "of" or "in",[6] hence "of the Australian Capital Territory".
Distribution and habitat
Canberra spider orchid occurs in three small scattered populations on Mount Majura, Mount Ainslie and in the Madura Valley. It grows in the transitional zone between woodland and forest, with grasses and small shrubs, often amongst rocks.[2][3][4]
Ecology
As with other caladenias, this orchid requires a
Conservation
Caladenia actensis is listed as "critically endangered" (CR) under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). The main threats to the species include trampling by walkers, bicycles or horses, infrastructure building and maintenance, and weed invasion.[3]
References
- ^ a b "Caladenia actensis". Australian Plant Census. Retrieved 27 October 2023.
- ^ ISBN 1877069124.
- ^ a b c Frawley, Kevin. "Recovery Plan For Canberra Spider Orchid (Arachnorchis actensis)" (PDF). Australian Government Department of the Environment. Retrieved 24 January 2017.
- ^ a b c "Canberra spider orchid Caladenia actensis - Action Plan" (PDF). ACT Government Environment, Planning and Sustainable Development Directorate - Environment. Retrieved 2 November 2020.
- ^ "Caladenia actensis". APNI. Retrieved 24 January 2017.
- ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 28.