Senecio madagascariensis

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Senecio madagascariensis
Senecio madagascariensis DSCN9704.jpg
Madagascar ragwort
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Senecioneae
Genus: Senecio
Species: S. madagascariensis
Binomial name
Senecio madagascariensis
Poir. (1817)

Senecio burchellii auct. - non DC.
Senecio incognitus Cabrera
Senecio junodianus O.Hoffm.
Senecio ruderalis Harv.
Sources: IPNI,[1] AFPD[2]

Senecio madagascariensis also known as Madagascar ragwort[3] is a species of the genus Senecio and family Asteraceae. Other common names include Madagascar groundsel and fireweed.[3] It has been included on the noxious weeds list for Hawaii[4] and the reject list for Australia.[5]


Southern Africa: Cape Province, Natal, Transvaal, Swaziland

Sources: GRIN[6]

Argentina, Australia, Colombia, Hawaii, Japan, Kenya, Mauritius and Réunion.[7]


Senecio madagascariensis contains pyrrolizidine alkaloids and is poisonous.[8] Horses, cattle, and other livestock are at risk. Symptoms of poisoning from fireweed include gradual weight loss, jaundice, fluid in the lungs, blindness, sudden death without any other indications, aimless wandering, muscular coordination, twitching of the head muscles, abdominal straining, rectal prolapse, and irritability.[4]


  1. ^ "Plant Name Details for Senecio madagascariensis" (HTML). International Plant Names Index (IPNI). International Organization for Plant Information (IOPI). Retrieved 2008-05-27. 
  2. ^ "Senecio madagascariensis Poir. record n° 98241". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Retrieved 2008-05-27. 
  3. ^ a b "Senecio madagascariensis". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 10 November 2015. 
  4. ^ a b Pacific Island Ecosystems at Risk (1999-01-01). "Senecio madagascariensis". Retrieved 2008-05-27. 
  5. ^ Pacific Island Ecosystems at Risk (2001-01-25). "Senecio madagascariensis". Retrieved 2008-05-27. 
  6. ^ "Senecio madagascariensis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2008-05-27. 
  7. ^ Canadian Food Inspection Agency
  8. ^ The MERCK Veterinary Manual, Table 5 Archived 2010-11-17 at the Wayback Machine.

External links[edit]

Media related to Senecio madagascariensis at Wikimedia Commons