Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Porophyllum ruderale subsp. macrocephalum
ruda gallinazo
Domain
Eukaryota
Kingdom
Plantae
Phylum
Magnoliophyta
Class
Magnoliopsida (= Dicotyledoneae)
Order
Asterales
Family
Asteraceae
Genus
Porophyllum
Species
ruderale
Subspecies
subsp. macrocephalum
Taxon category: Species with Infraspecific Taxa
Syn.: Porophyllum ellipticum. This species, as reported by Wiggins & Porter (1971), most likely also refers to Porophyllum ruderale sensu Andersson (1855), Robinson (1902) et Stewart (1911).
Origin: Introduced - established
Year of first record: 1852
Mode of introduction: Accidental
Introduced status: Naturalized
Invasive status: No data
Map of specimen collection localities or observation records for this species in our collections database.
- Andersson, N.J. (1855) Om Galápagos Öarnes Vegetation. Kongliga Svenska Vetenskaps Akademien Handl., Stockholm: 61-256.
- Clavijo, P. Valdebenito, H. & Hurtado, F. (1991) Plantas introducidas en las areas urbanas de las islas Galapagos. Typescript reports in files of Botany Dept.
- Cronquist, A. (1970) New Combinations in the Compositae of the Galápagos Islands. Madroño 20(5): 255-256.
- Guézou, A. Trueman, M., Buddenhagen, E., Chamorro, S., Guerrero, A.M., Pozo, P., Atkinson, R. (2010) An extensive Alien Plan Inventory from the Inhabited Areas of Galapagos Plos One/ www.plosone.org. Volume 5/ Issue 4/e10276
- Lawesson, J.E. (s.a.) Pers. obs. field notes, collections 1985-7.
- Lundh, J.P. (1995) Some additional information and comments on the Annotated Check list of Vascular Plants of the Galapagos Islands by Lawesson, Adsersen and Bentley. Charles Darwin Research Station, unpublished.
- Porter, D.M. (1983) Vascular Plants of the Galapagos: Origins and Dispersal. In: Bowman, R.I., Berson, M. & Leviton, A.E. (eds.): Patterns of evolution in Galápagos organisms. Pacific Division, AAAS, San Francisco, California, p. 33-96.
- Robinson, B.L. (1902) Flora of the Galapagos Islands. Papers from the Hopkins-Stanford Expedition to the Galapgaos Islands. Proc. Amer. Acad. 38(4): 78-270.
- Stewart, A. (1911) A botanical survey of the Galápagos Islands. Proc. Calif. Acad. Sci. 4th Series, 1: 7-288.
- Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
- Van der Werff, H.H. (s.a.) Pers. obs. and colls. Personal observations and collections.
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Porophyllum ruderale subsp. macrocephalum", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=335. Accessed 31 October 2026.