Cirsium nuttallii

Cirsium nuttallii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species:
C. nuttallii
Binomial name
Cirsium nuttallii
Synonyms[1]
  • Carduus glaber Nutt. 1818 not Cirsium glabrum DC. 1805
  • Carduus nuttallii (DC.) Pollard
  • Carduus virginianus Bosc ex DC. 1838 not L. 1753
  • Cnicus glaber (Nutt.) Elliott
  • Cnicus nuttallii A.Gray

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.[2]

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.[3]

References

  1. ^ The Plant List, Cirsium nuttallii DC.
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ Flora of North America, Nuttall’s thistle, Cirsium nuttallii de Candolle


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