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]
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]
Roldana also known as groundsel is a genus of large herbs or subshrubs from the tribe groundsel tribe within the sunflower family.
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.
Species Roldana albonervia - from Jalisco to Guatemala Roldana angulifolia - central Mexico Roldana anisophylla - Oaxaca Roldana barba-johannis - from Hidalgo to Honduras Roldana calzadana - Oaxaca Roldana chapalensis - central Mexico Roldana chiapensis - Chiapas Roldana cordovensis - central Mexico Roldana cristobalensis - Oaxaca, Chiapas, Guatemala Roldana ehrenbergiana - central Mexico Roldana eriophylla - Oaxaca, Chiapas, Guatemala Roldana floresiorum - Jalisco Roldana galiciana - Jalisco Roldana gesneriifolia - Durango Roldana gilgii - Chiapas, Guatemala Roldana gonzaleziae - Jalisco, Durango Roldana grimesii - northeastern Mexico Roldana guadalajarensis - west-central Mexico Roldana hartwegii - AZ NM TX, northwestern Mexico Roldana hederifolia - Michoacán, Oaxaca Roldana heracleifolia - central Mexico Roldana heterogama - Chiapas, Central America Roldana heteroidea - Oaxaca Roldana hirsuticaulis - northeastern Mexico Roldana jurgensenii - from Oaxacato Honduras Roldana kerberi - Colima, Jalisco, Oaxaca Roldana langlassei - Guerrero Roldana lanicaulis - from Tamaulipas to Guatemala Roldana lobata - from Jalisco to Guatemala Roldana manantlanensis - Jalisco Roldana marquesii - Veracruz, Hidalgo Roldana metepeca - central Mexico Roldana mexicana - central Mexico Roldana mezquitalana - Jalisco, Durango Roldana mixtecana - Oaxaca Roldana neogibsonii - central Mexico Roldana nesomiorum - Nuevo León, Tamaulipas Roldana oaxacana - Oaxaca Roldana pennellii - Durango Roldana petasitis - from Nicaragua to Hidalgo Roldana pinetorum - Guerrero, Oaxaca Roldana platanifolia - from Tamaulipas to Oaxaca Roldana reglensis - Veracruz Roldana reticulata - central Mexico Roldana robinsoniana - western Mexico Roldana sartorii - Oaxaca Roldana scandens - Costa Rica Roldana schaffneri - from Nicaragua to Veracruz Roldana sinuata - from Jaliscoto Oaxaca Roldana subpeltata - Durango, Sinaloa Roldana sundbergii - Nuevo León, Tamaulipas Roldana tepopana - Sonora Roldana tlacotepecana - Guerrero Roldana tonii - Chiapas formerly includedseveral species now regarded as better suited to other genera: Senecio Trixis
'Cristobalensis', 'sartorii' and 'oaxacana' are accepted as varieties of Roldana petasitis.
