Some of the most harmful introduced plants are the guayaba or guava ("Psidium guajava"), avocado ("Persea americana"), cascarilla ("Cinchona pubescens"), balsa ("Ochroma pyramidale"), hill raspberry ("Rubus niveus"), various citrus (orange, grapefruit, lemon), floripondio, higuerilla ("Ricinus communis") trees and the elephant grass, "Pennisetum purpureum".
Prvi angleški kapitan, ki je leta 1593 obiskal Galapaške otoke, je bil Richard Hawkins.