Pterostylis erecta, commonly known as the upright maroonhood, is a species of orchid endemic to eastern Australia. Flowering plants have a rosette of four to seven stalked, dark green, crinkled leaves and a greenish to reddish-brown flower with a gap between the petals and lateral sepals. It occurs in New South Wales and south-eastern Queensland.
| Upright maroonhood | |
|---|---|
| |
| In Bongil Bongil National Park | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Cranichideae |
| Genus: | Pterostylis |
| Species: | P. erecta
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| Binomial name | |
| Pterostylis erecta | |
Description
editPterostylis erecta is a terrestrial, perennial, deciduous, herb with an underground tuber. Flowering plants have a rosette of between four and seven stalked, dark green, crinkled leaves, each leaf 15–50 mm long and 10–25 mm wide. A single flower 18–22 mm long and 5–7 mm wide is borne on a spike 150–350 mm high. The flowers are greenish to reddish brown or dark chocolate brown. The dorsal sepal and petals are fused, forming a hood or "galea" over the column but the dorsal sepal is longer than the petals and has a sharp point on its end. There is a wide gap between the petals and the lateral sepals and the sinus between the lateral sepals has a central notch and bulges slightly forward. The labellum is 6–7 mm long, about 2 mm wide, brown, blunt and just visible above the sinus. Flowering occurs from August to September.[3][4]
Taxonomy and naming
editPterostylis erecta was first formally described in 1958 by Trevor Edgar Hunt from a specimen collected near Samford in Queensland. The description was published in Proceedings of the Royal Society of Queensland.[5] The specific epithet (erecta) is a Latin word meaning "upright".[6]
Distribution and habitat
editThe upright maroonhood grows mainly in coastal and near coastal forest north from Moruya in New South Wales to south-eastern Queensland.[3][4]
References
edit- ^ Romand-Monnier, F. (2013). "Pterostylis erecta". IUCN Red List of Threatened Species. 2013: e.T44393701A44512999. doi:10.2305/IUCN.UK.2013-1.RLTS.T44393701A44512999.en. Retrieved 11 March 2024.
- ^ "Pterostylis erecta". Australian Plant Census. Retrieved 11 March 2024.
- ^ a b Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 302. ISBN 978-1877069123.
- ^ a b Jones, David L. "Pterostylis erecta". Royal Botanic Garden Sydney: plantnet. Retrieved 15 May 2017.
- ^ "Pterostylis erecta". APNI. Retrieved 15 May 2017.
- ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 307.
External links
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Media related to Pterostylis erecta at Wikimedia Commons