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Croptilon hookerianum

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Species of flowering plant

Croptilon hookerianum
Croptilon hookerianum var. validum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Croptilon
Species: C. hookerianum
Binomial name
Croptilon hookerianum
(Torr. & A.Gray) House
Synonyms
Synonymy
  • Croptilon divaricatum var. hookerianum (Torr. & A.Gray) Shinners
  • Haplopappus divaricatus var. hookerianus (Torr. & A.Gray) Waterf.
  • Haplopappus validus subsp. torreyi E.B.Sm.
  • Isopappus hookerianus Torr. & A.Gray
  • Croptilon divaricatum var. graniticum (E.B.Sm.) Shinners, syn of var. graniticum
  • Haplopappus validus subsp. graniticus E.B.Sm., syn of var. graniticum
  • Haplopappus validus (Rydb.) Cory, syn of var. validum
  • Isopappus validus Rydb., syn of var. validum

Croptilon hookerianum, called Hooker's scratchdaisy, is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It has been found in the US states of Texas, Oklahoma, Kansas, and Arkansas.

Croptilon hookerianum is an herb sometimes reaching a height of 120 cm (4 feet). Flower heads are yellow, with both ray florets and disc florets.

Varieties
  • Croptilon hookerianum var. graniticum (E.B.Sm.) E.B.Sm. - Texas
  • Croptilon hookerianum var. hookerianum - Texas
  • Croptilon hookerianum var. validum (Rydb.) E.B.Sm. - Arkansas, Kansas, Oklahoma, Texas

References

  1. The Plant List Croptilon hookerianum (Torr. & A.Gray) House
  2. Biota of North America Program 2014 county distribution map
  3. "Croptilon rigidifolium in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2023-08-08.
Taxon identifiers
Croptilon hookerianum
Isopappus hookerianus


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