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 Thunb.[1]
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