Carex tristachya

Carex tristachya, called the shiny-spike sedge, is a species of flowering plant in the genus Carex, native to south-central and southeast China (including Hainan and Taiwan), Korea, Japan, the Ryukyus, the Philippines, Borneo, and New Guinea.[2][3] Its seeds are dispersed by ants.[4]

Carex tristachya
Inflorescence, showing the three female spikelets
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Species:
C. tristachya
Binomial name
Carex tristachya
Synonyms[2]
  • Carex pocilliformis Boott
  • Carex tristachya subsp. pocilliformis (Boott) T.Koyama

Subtaxa

The following varieties are currently accepted:[2]

  • Carex tristachya var. pocilliformis (Boott) Kük. – whole range, except Hainan
  • Carex tristachya var. tristachya – Japan, Korea, southeast China, Hainan

References
  1. J.A.Murray, Syst. Veg. ed. 14: 845 (1784)
  2. "Carex tristachya Thunb". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 31 January 2021.
  3. 국립수목원 (August 2015). 한반도 자생식물 영어이름 목록집: English Names for Korean Native Plants. ISBN 9788997450985.
  4. Tanaka, Koki; Suzuki, Nobuhiko (2016). "Interference competition among disperser ants affects their preference for seeds of an ant-dispersed sedge Carex tristachya (Cyperaceae)". Plant Species Biology. 31: 11–18. doi:10.1111/1442-1984.12073.


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