Cirsium nuttallii explained

Cirsium nuttallii, called Nuttall's thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the coastal plain of the southeastern and south-central United States, from eastern Texas to southeastern Virginia.[1]

Cirsium nuttallii is a biennial or perennial herb up to 350 cm (almost 12 feet) tall, with a large taproot. Leaves are up to 60 cm (24 inches) long with thin, green on the upper side but gray to white on the underside because of numerous woolly hairs; spines along the edges of the leaves. There are a few flower heads, each head with white, pink, purple or lavender disc florets but no ray florets.[2]

External links

Notes and References

  1. http://bonap.net/MapGallery/County/Cirsium%20nuttallii.png Biota of North America Program 2014 county distribution map
  2. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066385 Flora of North America, Nuttall’s thistle, Cirsium nuttallii de Candolle