Gnaphalium palustre

Gnaphalium palustre, known by the common name western marsh cudweed, is a species of flowering plant in the daisy family.[1]

Gnaphalium palustre
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Gnaphalieae
Genus:
Gnaphalium
Species:
G. palustre
Binomial name
Gnaphalium palustre
Nutt. 1841
Synonyms
  • Filaginella palustris (Nutt.) Holub

The plant is native to much of western North America, where it is common in many habitats and from valley floor to mountain alpine elevations of Western Canada, the Western United States, and Northwestern Mexico. It is found from British Columbia, Alberta, and Saskatchewan south as far as Baja California Sur, Arizona, and New Mexico.[2][3][4][5][6]

Description

Gnaphalium palustre is an annual herb growing erect stems which may be short or up to about 30 centimeters (12 inches) tall. The stems and foliage are nearly white due to their coating of woolly hairs. The leaves are small and lance-shaped to scoop-shaped.[1]

The inflorescence holds a cluster of flower heads in a nest of woolly fibers. Each head has brownish to pale yellowish phyllaries surrounding a center of many tiny flowers.[1]

References
  1. Flora of North America, Gnaphalium palustre Nuttall, 1841. Western marsh cudweed
  2. Biota of North America Program 2014 county distribution map
  3. Calflora taxon report, University of California, Gnaphalium palustre Nutt., Lowland Cudweed, western marsh cudweed
  4. In Klinkenberg, Brian. (Editor) 2015. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 7/17/2015 1:49:56 PM ]
  5. Flora of Eastern Washington and Adjacent Idaho
  6. Turner Photographics, Gnaphalium palustre - Wildflowers of the Pacific Northwest photos, description, partial distribution map

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