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Cirsium grahamii

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Species of thistle

Cirsium grahamii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species: C. grahamii
Binomial name
Cirsium grahamii
A.Gray
Synonyms
  • Carduus grahamii (A.Gray) Greene
  • Cnicus grahamii A.Gray

Cirsium grahamii, called Graham's thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to Sonora, Chihuahua, Durango, Nuevo León, New Mexico, and Arizona.

Cirsium grahamii is a biennial herb up to 100 cm (40 inches) tall, blooming only once before dying. Leaves have thin spines along the edges. There is several flower heads per plant, with deep purple disc florets but no ray florets.

References

  1. The Plant List, Cirsium grahamii A.Gray
  2. Biota of North America Program 2014 county distribution map
  3. Tropicos, Cirsium grahamii A. Gray
  4. ^ Graham’s thistle , Flora of North America, Cirsium grahamii A.Gray

External links

Taxon identifiers
Cirsium grahamii


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