Biology:Cirsium clavatum

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Short description: Species of thistle

Cirsium clavatum
Cirsium clavatum var. osterhoutii kz02.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species:
C. clavatum
Binomial name
Cirsium clavatum
(M.E.Jones) Petr.
Synonyms[1]

Cirsium clavatum, the Fish Lake thistle or fringed thistle,[2] is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the western United States , the States of Wyoming, Colorado, Utah, Arizona, and New Mexico.[3][4]

Cirsium clavatum is a biennial or perennial herb up to 100 cm (40 inches) tall, blooming only once before dying. Leaves have thin spines along the edge, much smaller than those of related species. There are several to many flower heads, with white or pale pink disc florets but no ray florets.[5]

Varieties[1][5]
  • Cirsium clavatum var. americanum (A.Gray) D.J.Keil - Colorado, Utah, Wyoming
  • Cirsium clavatum var. clavatum - Colorado, Utah
  • Cirsium clavatum var. osterhoutii (Rydb.) D.J.Keil - Colorado

References

Wikidata ☰ Q15594365 entry