Carex scabrifolia
{{Short description|Species of plant}}
{{Speciesbox
| image = Carex scabrifolia siokugu06.jpg
| genus = Carex
| species = scabrifolia
| authority = Steud.
}}
Carex scabrifolia, also known as cao ye tai cao, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to eastern parts of Asia.{{cite web |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:302105-1|title=Carex scabrifolia Steud. |access-date=13 October 2022 |publisher=Kew Science – Plants of the World Online}}
Description
The sedge has a rhizome that runs parallel to the ground sprouting new tufts. It has two or three thin culms with a triangular cross-section that grow to a height of {{cvt|30|to|60|cm}}. The culms are mostly smooth but have a rough texture on the upper portion. The culms are surrounded by bladeless sheaths with a red-brown colour near the base that deteriorate over time into a mass of fibers.{{cite web|url=http://www.worldfloraonline.org/taxon/wfo-0000351020|title=Carex scabrifolia Steud.|accessdate=14 October 2022|publisher=World Flora Online}}
Taxonomy
The species was first described by the botanist Ernst Gottlieb von Steudel in 1855 as a part of the work Synopsis Plantarum Glumacearum.{{cite web|url=http://legacy.tropicos.org/Name/9905851|title=Carex scabrifolia Steud.|accessdate=15 October 2022|work=Tropicos|publisher=Missouri Botanical Garden|year=2022}} It has four synonyms; Carex pierotii described by Friedrich Anton Wilhelm Miquel in 1865, Carex suberea described by Boott in 1867, Carex malinvaldii and Carex yabei.{{cite web|url=https://wcsp.science.kew.org/synonomy.do?name_id=230667|title=Carex scabrifolia Steud., Syn. Pl. Glumac. 2: 237 (1855).|work=World Checklist of Selected Plants|accessdate=15 October 2022|publisher=KewScience}}