Carex helferi
{{Use dmy dates|date=November 2022}}
{{Short description|Species of plant}}
{{Speciesbox
| image =
| genus = Carex
| species = helferi
| authority = Boeckeler
}}
Carex helferi is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to parts of South East Asia.{{cite web |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:300120-1|title=Carex helferi Boeckeler |access-date=19 November 2022 |publisher=Kew Science – Plants of the World Online}}
Description
The sedge has a woody rhizome with central culms that have a triangular cross-section with a length of {{cvt|20|to|50|cm}} and a width of {{cvt|1|to|3|mm}} and that are smooth lower down with a rough texture toward the top. It has basal flattish to folded lengthwise leaves with a broadly linear to lanceolate shaped blade that is {{cvt|17|to|60|cm}} long with a {{cvt|1|to|7|cm}} long dark brown sheaths that usually disintegrate. The narrow inflorescences appear as a narrow branched cluster with a length of {{cvt|17|to|20|cm}} with three to six crowded to distant nodes.
Taxonomy
The species was first formally described by the botanist Johann Otto Boeckeler in 1876 as a part of the work Linnaea.{{cite web|url=http://legacy.tropicos.org/Name/100162732|title=Carex helferi Boeckeler |access-date=19 November 2022 |publisher=Missouri Botanical Garden|work=Tropicos}} It has two synonyms;
- Carex helferi subsp. mapaniifolia (Ridl.) T.Koyama
- Carex mapaniifolia Ridl. {{cite web|url=http://www.worldfloraonline.org/taxon/wfo-0000347385|title=Carex helferi Boeckeler |access-date=19 November 2022 |publisher=World Flora Online}}
Distribution
See also
References
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Category:Taxa named by Johann Otto Boeckeler