Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Dysphania ambrosioides
paico, hierba hormiguera, apazote, mexican tea, american wormseed




Domain
Eukaryota
Kingdom
Plantae
Phylum
Magnoliophyta
Class
Magnoliopsida (= Dicotyledoneae)
Order
Caryophyllales
Family
Amaranthaceae
Genus
Dysphania
Species
ambrosioides
Taxon category: Accepted
Syn.: Ambrina ambrosioides (L.) Spach
Origin: Introduced - established
Year of first record: 1926
Mode of introduction: Intentional
Introduction Pathway: Intentional
Subpathway: Agriculture/Horticulture
Introduced status: Naturalized
Invasive status: Potentially Invasive
Map of specimen collection localities or observation records for this species in our collections database.
- Castro, S. A. Curtis, C.D., Silva, L., Torres-Santana, C.W., Reyes-Betancort, J.A., Atkinson, R., Jaramillo, P., Guézou, A. & Jaksic, F. M. (2010) Floristic homogenization as a teleconnected trend in oceanic islands. Diversity and Distributions, (Diversity Distrib.): 1-9.
- Christophersen, E. (1932) A Collection of Plants from the Galápagos Islands. Nyt Mag. Naturvidenskaberne 70: 67-95.
- Flores, E. (1985) Censo de Plantas Introducidas desde el Canal de Itabaca hasta Puerto Ayora. Tesis de Ingeniero Forestal, Univ. Técnica Luis Vargas Torres, Esmeraldas: 1-132.
- 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. (1987) Plantas exóticas en las Islas Galápagos, un resumen. Memorias. Taller sobre investigación Botánica y manejo en Galápagos. Pg. 17-23.
- 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.
- Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
- Wiggins, I.L. Porter, D.M. (1971) Flora of the Galapagos Islands Standford University Press, Stanford.
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, Dysphania ambrosioides", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=271. Accessed 31 October 2026.