This is a widespread species known as Culantro with medicinal and condiment uses. Neotropical, now more widely planted. Photo from an island in the Amazon River. In context at www.dixpix.ca/Amazon/flora/asterids/index.html
CulantroApiaceae (Parsley or Carrot family)Native to Mexico and South America, but cultivated worldwideOahu, Hawaii, USA (Cultivated)This photo: Closeup of flowerFlowerswww.flickr.com/photos/dweickhoff/31268616531/in/photostream/Leaveswww.flickr.com/photos/dweickhoff/31383657085/in/photostream/Locally known as culantro, or ng gai in Vietnamese, and used with ph or pho and other cuisine.Also used as a medicinal plant in some cultures.EtymologyThe generic Eryngium is from the Latin eryngion, originating from a diminutive of Greek rungos sea holly.The specific epithet foetidum literally "foul-smelling thistle"