Cirsium pumilum explained

Cirsium pumilum, the pasture thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the northeastern and north-central United States as well as to the Canadian Province of Ontario.[1] [2]

Cirsium pumilum is a biennial or perennial herb up to 100 cm (40 inches) tall, blooming once before dying. It has leaf blades up to 30 cm (12 inches) long, with slender to stout spines. There are usually a few flower heads, sweetly scented, with pink, purple or white disc florets but no ray florets.[3]

Varieties

Notes and References

  1. http://bonap.net/MapGallery/County/Cirsium%20pumilum.png Biota of North America Program 2014 county distribution map, Cirsium pumilum
  2. http://bonap.net/MapGallery/County/Cirsium%20hillii.png Biota of North America Program 2014 county distribution map, Cirsium hillii
  3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066395 Flora of North America, Pasture thistle, Cirsium pumilum (Nuttall) Sprengel, Syst. Veg. 3: 375. 1826.