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Centromadia pungens

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Species of flowering plant

Centromadia pungens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Centromadia
Species: C. pungens
Binomial name
Centromadia pungens
(Hook. & Arn.) Greene
Synonyms
  • Centromadia maritima Greene
  • Hartmannia pungens Hook. & Arn.
  • Hemizonia pungens (Hook. & Arn.) Torr. & A.Gray

Centromadia pungens, the common spikeweed or common tarweed, is a species of North American plants in the tribe Madieae within the family Asteraceae. It is native to northern Baja California and the western United States (California, Oregon, Washington, Idaho, Nevada, Arizona). The plant is considered a noxious weed in parts of the Pacific Northwest.

Centromadia pungens is an herb up to 120 cm (47 in) tall. It produces arrays of numerous yellow flower heads with both ray florets and disc florets.

Subspecies
  • Centromadia pungens subsp. laevis (D.D.Keck) B.G.Baldwin - Baja California, southern California
  • Centromadia pungens subsp. pungens - most of species range

References

  1. ^ The Plant List Centromadia pungens (Hook. & Arn.) Greene
  2. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  3. NRCS. "Centromadia pungens". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 5 June 2015.
  4. Biota of North America Program 2014 county distribution map
  5. Calflora taxon report, University of California, Centromadia pungens (Hook. & Arn.) Greene, common tarweed
  6. Flora of North America, Spikeweed, Centromadia Greene
  7. Greene, Edward Lee 1894. Manual of the Botany of the Region of San Francisco Bay 196
  8. Torrey, John & Gray, Asa 1843. Flora of North America 2(3): 399

External links

Taxon identifiers
Centromadia pungens


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