Amphiscirpus

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Cyperaceae
Subfamilia: Cyperoideae
Tribus: Scirpeae
Genus: Amphiscirpus
Species: A. nevadensis
Name

Amphiscirpus Oteng-Yeb. Notes Roy. Bot. Gard. Edinburgh 33(2): 308. (1974)
References

Oteng-Yeboah, A. A. (1974) Notes from the Royal Botanic Garden, Edinburgh 33(2): 308.
Govaerts, R. et al. 2015. Amphiscirpus in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2015 May 28. Reference page.
International Plant Names Index. 2015. Amphiscirpus. Published online. Accessed: May 28 2015.
Tropicos.org 2015. Amphiscirpus. Missouri Botanical Garden. Published on the internet. Accessed: 2015 May 28.
USDA, ARS, Germplasm Resources Information Network. Amphiscirpus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Amphiscirpus is a monotypic genus of flowering plants in the sedge family containing the single species Amphiscirpus nevadensis, which is known by the common name Nevada bulrush.

This plant was formerly included in genus Scirpus.[2] It is native to western North America, including the western Canadian provinces and the northwestern United States, as well as southern South America. It grows in wet and seasonally wet habitat, often on saline and alkaline soils. It is a perennial herb growing from a small, hard rhizome. The erect stems are stiff, ridged, and cylindrical, not three-angled. It lacks aerenchyma, a trait which makes it different from many of its relatives. The stems are sheathed by tough long leaves. The inflorescence is a headlike cluster of a few cone-shaped spikelets accompanied by a long, stiff bract which looks like an extension of the stem.
References

Lansdown, R.V. (2016). "Amphiscirpus nevadensis". The IUCN Red List of Threatened Species. IUCN. 208. e.T64263809A67728513. doi:10.2305/IUCN.UK.2016-1.RLTS.T64263809A67728513.en.
Goetghebeur, P. and D. A. Simpson. (1991). Critical notes on Actinoscirpus, Bolboschoenus, Isolepis, Phylloscirpus and Amphiscirpus (Cyperaceae). Kew Bulletin 46:1 169-78.