Senecio and Furcraea are both a genus of what?
Furcraea Furcraea is a genus of succulent plants belonging to the family Asparagaceae, subfamily Agavoideae, native to tropical regions of Mexico, the Caribbean, Central America and northern South America. Some species are also naturalized in parts of Africa, Florida, Portugal, Thailand, India, and Australia, as well as on various oceanic islands.
Senecio gallicus Senecio gallicus, an annual plant of the "Senecio" genus and a member of the Asteraceae family is also one of those species who colonizes in isolated habitats where the environmental conditions could qualify as being difficult—widespread across southern France and the Iberian Peninsula in deserts and xeric shrublands, on steppes and salty dry coastal plains. "S. gallicus" is playing a predominant role in shaping patterns of genetic structure by presenting models of historical associations among population rather than patterns of ongoing gene flow.