Centaurea gymnocarpa

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Centaurea gymnocarpa
Centaureagymnocarpa.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Centaurea
Species:
C. gymnocarpa
Binomial name
Centaurea gymnocarpa
Moris & De Not.

Centaurea gymnocarpa, also known as Capraian cornflower (Italian : fiordaliso di Capraia) or centaury of Capraia, is a species of flowering plant in the family Asteraceae. It is a rare species endemic to Italy found only on Capraia, a small island located in the Tuscan Archipelago, with the species being distributed across 8 subpopulations on the island's surface. Its natural habitats are Mediterranean-type shrubby vegetation and rocky areas, colonizing in the cracks and fissures of cliffs. [2]

Contents

While true C. gymnocarpa is an endangered species in the wild, a hybrid with the related species Centaurea cineraria is sometimes used in gardens as an ornamental plant. [3] [4]

It is classified on the IUCN Red List as a vulnerable species.

Description

This perennial plant has a woody base and long stem that reaches a height between 80 and 100 cm (27.5 and 39.3 inches). The plant is covered with dense short hairs, giving a greyish-white appearance to the plant. The leaves are somewhat fleshy and appear green above and greyish-white below, with old leaves persisting at the base. C. gymnocarpa Flowers in May, producing tiny pink flowers in a compact flower head. [5]

Conservation status

Centaurea gymnocarpa has previously been categorized as endangered according to the IUCN Red List in 2005, but has recently been downgraded to vulnerable status in 2017 due to an increase in recorded mature individuals (<250 in 2006, <1000 as of 2017). [2] In addition, Carpobrotus acinaciformis , an invasive species in the area and also one of the main competitive risks for C. gymnocarpa was eradicated during 2013-2014 on some portions of the island leading to an increase in established seedlings in some subpopulations. [6]

Threats

While Carpobrotus acinaciformis has been eradicated from some areas of the island, no recent data is available for other sites and as such may still pose a threat to some subpopulations. [7] Senecio angulatus , another competitive invasive species, is also starting to expand across the island and may pose a threat to the species. In addition, increases in tourism on the island can enhance the risk of damage to the plants.

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References

  1. Foggi, B. (2006). "Centaurea gymnocarpa". IUCN Red List of Threatened Species . 2006: e.T61620A12524846. doi: 10.2305/IUCN.UK.2006.RLTS.T61620A12524846.en . Retrieved 16 November 2021.
  2. 1 2 "IUCN Top 50 - Centaurea gymnocarpa". top50.iucn-mpsg.org. Retrieved 2020-04-16.
  3. "Centaurea gymnocarpa: Foggi, B." 2006-01-31. doi: 10.2305/iucn.uk.2006.rlts.t61620a12524846.en .{{cite journal}}: Cite journal requires |journal= (help)
  4. Hind, Nicholas; Hashi, Mayumi; Brown, Andrew (March 2022). "1009. CENTAUREA CINERARIA: Compositae". Curtis's Botanical Magazine. 39 (1): 35–54. doi: 10.1111/curt.12431 . ISSN   1355-4905. S2CID   246185912.
  5. Catoni, Rosangela; Gratani, Loretta (March 2013). "Morphological and physiological adaptive traits of Mediterranean narrow endemic plants: The case of Centaurea gymnocarpa (Capraia Island, Italy)". Flora - Morphology, Distribution, Functional Ecology of Plants. 208 (3): 174–183. doi:10.1016/j.flora.2013.02.010. ISSN   0367-2530.
  6. de Montmollin, Bertrand; Strahm, Wendy, eds. (2005). The Top 50 Mediterranean Island Plants. doi: 10.2305/iucn.ch.2005.8.en . ISBN   283170832X.
  7. Foggi, Bruno; Viciani, Daniele; Baldini, Riccardo M.; Carta, Angelino; Guidi, Tommaso (January 2015). "Conservation assessment of the endemic plants of the Tuscan Archipelago, Italy". Oryx. 49 (1): 118–126. doi: 10.1017/S0030605313000288 . hdl: 11568/753271 . ISSN   0030-6053.