Roldana petasitis

Roldana petasitis, the velvet groundsel or Californian geranium,[3] is a species of the genus Roldana and family Asteraceae that used to be classified in the genus Senecio.

Roldana petasitis
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Roldana
Species:
R. petasitis
Binomial name
Roldana petasitis
(Sims) H.Rob. & Brettell
Synonyms[1][2]

Senecio petasitis (Sims) DC.
Cineraria petasitis Sims

Description
Leaf detail

Preferring constant heat and thriving in sheltered gardens, it is an evergreen subshrub with weak stems. It grows up to 1.8 m tall and has large leaves with 7 or more broad, blunt lobes.

Inflorescences

The flower heads, like daisies, of about 6 ray ligulate petals are borne in foliaceous panicles. The plant blooms from winter to early spring.[3]

Varieties

'Roldana p. var. cristobalensis' is a variety of this plant which features leaves with purple undersides.[4][5] 'Roldana petasitis var. oaxacana' and 'sartorii' are other varieties.[6][7]

Distribution
Neotropic
Mexico Southwest: Colima, Guerrero, Jalisco, Michoacán, Nayarit, Oaxaca
Mesoamerica: El Salvador, Guatemala, Honduras, Nicaragua
  • Bunch of flowers
    Bunch of flowers
  • Bushy habit
    Bushy habit
  • Leaves
    Leaves
  • Sprawling habit
    Sprawling habit
  • Pollination
    Pollination
  • In a forest
    In a forest
  • In San Diego Botanic Garden
    In San Diego Botanic Garden
  • Leaves with purple shades
    Leaves with purple shades

References
  1. Natural Resources Conservation Service (NRCS). "PLANTS Profile, Roldana petasitis". The PLANTS Database. United States Department of Agriculture. Retrieved 2008-05-23.
  2. "Roldana petasitis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2008-05-23.
  3. Velvet Groundsel Better Homes & Gardens. Retrieved 28 March 2023.
  4. Roldana petasitis var. cristobalensis (Greenm.) FunstonBoard of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.
  5. Senecio cristobalensis syn. Roldana petasitis var. cristobalensis Special Plants.net by Derry Watkins. Retrieved 12 April 2023.
  6. Roldana petasitis var. oaxacana (Hemsl.) Funston Board of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.
  7. Roldana petasitis var. sartorii (Sch.Bip. ex Hemsl.) Funston Board of Trustees of the Royal Botanic Gardens, Kew Retrieved 12 April 2023.

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