Roldana also known as groundsel is a genus of large herbs or subshrubs from the tribe groundsel tribe within the sunflower family.[2][3][4]

Roldana
Roldana petasitis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Senecioneae
Genus: Roldana
La Llave ex Lex.
Type species
Roldana lobata
Synonyms[1]
  • Pericalia Cass.
  • Senecio sect. Palmatinervii Greenm.

Most if not all of its members used to be members of a related genus, Senecio. The species which are native to Southwest United States, Mexico and Central America and naturalized elsewhere.[5][6]

Species[1]
formerly included[1]

several species now regarded as better suited to other genera: Senecio Trixis

'Cristobalensis', 'sartorii' and 'oaxacana' are accepted as varieties of Roldana petasitis.[7][8][9]

References

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  1. ^ a b c Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
  2. ^ La Llave, Pablo de & Lexarza, Juan José Martinez de. 1825. Novorum Vegetabilium Descriptiones 2: 10
  3. ^ Turner, B. L. 2006. A recension of the Mexican species of Roldana (Asteraceae: Senecioneae). Phytologia 87(3): 204–249.
  4. ^ Tropicos, Roldana La Llave
  5. ^ Funston, A. Michele. "230. Roldana La Llave". Flora of North America. 20: Page 542, 620.
  6. ^ "ROLDANA". Flora of Australia Online. Retrieved 2008-05-23.
  7. ^ Roldana petasitis var. cristobalensis (Greenm.) FunstonBoard of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.
  8. ^ Roldana petasitis var. sartorii (Sch.Bip. ex Hemsl.) Funston Board of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.
  9. ^ Roldana petasitis var. oaxacana (Hemsl.) Funston Board of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.
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