Hibiscus clayi

Hibiscus clayi, common names red Kauai rosemallow,[3] Clay's hibiscus[2] or Kokiʻo ʻula (Hawaiian name), is a perennial angiosperm of the mallow family Malvaceae.

Hibiscus clayi
At the Jardin des Plantes, Paris

Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Hibiscus
Species:
H. clayi
Binomial name
Hibiscus clayi
O.Deg. & I.Deg.[2]
Synonyms[2]
  • Hibiscus newhousei M.J.Roe

Etymology

The generic name is derived from the Greek word ἱβίσκος (hibískos), which was the name Pedanius Dioscorides (ca. 40–90) gave to Althaea officinalis.[4] The species name clayi honors Horace F. Clay, a horticulturalist of Hawaii.[5]

Description

Hibiscus clayi is a shrub of 40–90 centimetres (16–35 in) or a tree reaching a height of 4–8 metres (13–26 ft).[6] Leaves are medium green, shiny, smooth-edged or slightly toothed on the tip. Single flowers are borne at the ends of the branches. They are showy, bright or dark red and they bloom all year around. They are generally similar to Hibiscus kokio.[5][6] This plant is listed as endangered by USFWS.

Distribution

This plant is endemic to Hawaii. It can be found in nature only in the dry forest of Nounou Mountains in the eastern Kauaʻi, at an elevation of 50–600 metres (160–1,970 ft) above sea level.[5] The conservation status of H. clayi is listed as Critically Endangered on the IUCN Red List.[1]

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See also

References
  1. Walsh, S.; Nyberg, B. & Wood, K. (2020). "Hibiscus clayi". IUCN Red List of Threatened Species. 2020: e.T30931A83801843. Retrieved 30 July 2020.
  2. "Hibiscus clayi". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 14 April 2017.
  3. "Hibiscus clayi". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 14 April 2017.
  4. Lawton, Barbara Perry (2004). Hibiscus: Hardy and Tropical Plants for the Garden. Timber Press. p. 36. ISBN 978-0-88192-654-5.
  5. "Native Plants Hawaii - Viewing Plant : Hibiscus clayi". nativeplants.hawaii.edu. Retrieved 2020-07-29.
  6. "Plant Conservation". Archived from the original on 2015-09-18. Retrieved 2014-06-23.


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