Paphiopedilum canhii
| Paphiopedilum canhii | |
|---|---|
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| Paphiopedilum canhii in flower in situ | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Cypripedioideae |
| Genus: | Paphiopedilum |
| Subgenus: | Paphiopedilum subg. Megastaminodium |
| Species: | P. canhii
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| Binomial name | |
| Paphiopedilum canhii Aver. & O.Gruss (2010)
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| Synonyms | |
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Paphiopedilum canhii is an Asian species of slipper orchid and the type species of the subgenus Paphiopedilum subg. Megastaminodium, available in Vietnam, Laos, and southern China.
Taxonomy
The species is named after Canh Chu Xuan, a local service officer who received the plants in November 2009 from the H'Mong (Meo) people.[3][4] The plants were brought into his office of Civilian Governmental Service for Care of Natural Resources and Connections with Local Minorities for further study and description, and after several months in the nursery, the plant flowered in April 2010. Its unusual characteristics had been recorded a year before in local markets by orchid growers in Điện Biên and Sơn La.[3] In 2014, the species was designated with its own Paphiopedilum subgenus, Megastaminodium, due to its distinct characteristics that makes it unfit for other subgenera.[5]
Description
P. canhii consists of 3 to 5 leaves measuring 3–5 centimetres (1.2–2.0 in) long, being distinctly tessellated light and darker green at its upper surface. Its erect inflorescence consists of a single flower measuring 6–8 centimetres (2.4–3.1 in) across, with peak flowering occurs in March and April.[4]
Distribution
P. canhii was originally discovered in the 2010 description at northwestern Vietnam, specifically from one locality along the border with Laos at Dien Bien province, where it grows at rocky limestone at elevations around 1,500 metres (4,900 ft).[4] Further explorations discovered P. cahnii at the Phou Phachao Mountain in Laos.[6] A Chinese variant, P. canhii var. funingense, was discovered in Funing County, Yunnan in 2013.[7][8]
Conservation status
P. canhii is critically endangered in the wild, mainly due to poaching and habitat destruction. The region where the species occurs is a distinct and significant center of Paphiopedilum speciation and diversity.[9] As a result, the area has been a priority not only for botanical exploration but also for ruthless collection for horticultural purposes.[1][4]
In 2015, the range for this species was estimated at 4 km2 with less than 10 mature individuals remaining in the wild.[1]
References
- ^ a b c Rankou, H.; Averyanov, L. "Paphiopedilum canhii. The IUCN Red List of Threatened Species 2015". IUCN Red List. International Union for Conservation of Nature and Natural Resources. Retrieved 12 January 2023.
- ^ "Paphiopedilum canhii var. funingense". Royal Botanic Gardens Kew. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 10 January 2023.
- ^ a b Averyanov, Leonid; Phan Kế, Lộc; Phạm văn, Thế; Chu Xuân, Cảnh; Nguyễn Tiến, Vinh (15 August 2012). Assessment of Distribution and Natural Status of Paphiopedlum canhii, VN (PDF). Retrieved 10 January 2023.
- ^ a b c d Averyanov, L.V.; Olaf, Gruss; Canh, C.X.; Phan Tấn, Lộc (May 2010). "Paphiopedilum canhii - a new species from Northern Vietnam". Orchid. 79 (5): 288–290. Retrieved 10 January 2023.
- ^ Górniak, Marcin; Szlachetko, Dariusz L.; Kowalkowska, Agnieszka K.; Bohdanowicz, Jerzy; Canh, Chu Xuan (January 2014). "Taxonomic placement of Paphiopedilum canhii (Cypripedioideae; Orchidaceae) based on cytological, molecular and micromorphological evidence". Molecular Phylogenetics and Evolution. 70: 429–441. doi:10.1016/j.ympev.2013.08.016. PMID 24001522. Retrieved 9 January 2023.
- ^ Averyanov, L.V.; Pham, The Van (June 2014). "Paphiopedilum canhii in Laos Phou Phachao Mountain – Mountain of Pahiopedilum canhii". Orchid Digest. 78 (2).
- ^ "No. 58-2: Paphiopedilum canhii var. funingense". www.orchid.or.jp. Retrieved 25 July 2025.
- ^ Liu, Z. J.; Chen, L. J. (2013). "Paphiopedilum canhii var. funingense, eine neue Värietat aus Yunnan, China". Orchidee (in German). 64 (320).
- ^ Averyanov, L.V. (2008). "the orchids of Vietnam. illustrated survey. Part 1. Subfamilies apostasioideae, cypripedioideae and Spiranthoideae". Turczaninowia. 11 (1): 5–168. Retrieved 12 January 2023.
External links
Media related to Paphiopedilum canhii at Wikimedia Commons
Data related to Paphiopedilum canhii at Wikispecies