Roldana

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Roldana
Senecio petasitis Blute.jpg
Roldana petasitis
Scientific classification OOjs UI icon edit-ltr.svg
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]
  • PericaliaCass.
  • Senecio sect. PalmatinerviiGreenm.

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]

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]

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Roldana petasitis, also known as the velvet groundsel or Californian geranium, is a species of the genus Roldana and family Asteraceae that used to be classified in the genus Senecio. It is native to Central America.

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References

  1. 1 2 3 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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