Trichophorum alpinum

{{short description|Species of flowering plant in the sedge family Cyperaceae}}

{{Speciesbox

| image = Trichophorum alpinum.JPG

| status = G5

| status_system = TNC

| status_ref =

| genus = Trichophorum

| species = alpinum

| authority = (L.) Pers.

| synonyms =

• Eriophorum alpinum L.

}}

Trichophorum alpinum, commonly known as alpine bulrush{{PLANTS|id=TRAL7|taxon=Trichophorum alpinum|accessdate=14 December 2015}} or cotton deergrass,{{Cite web|url=https://www.biolib.cz/en/taxon/id42240/|title=BioLib: Biological library}} is a species of flowering plant in the sedge family. It has a circumboreal distribution, occurring throughout the northern latitudes of the Northern Hemisphere. It is present in Europe, Asia, and northern North America.Williams, Tara Y. 1990. [http://www.fs.fed.us/database/feis/plants/graminoid/trialp/all.html Trichophorum alpinum.] In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.

This sedge produces stems up to {{convert|40|cm|sp=us}} tall from a short rhizome. The leaves are no more than a centimeter long. The flowers have cottony white bristles that may extend {{convert|2|cm|sp=us}} past the spikelet.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242357992 Trichophorum alpinum.] Flora of North America.

This plant grows in bogs and calcareous mountain meadows.