Biollante is a fictional kaiju from the Godzilla franchise, first appearing in the film "Godzilla vs. Biollante" (1989). She is a genetically engineered monster created from a fusion of Godzilla cells, a rose, and human DNA, resulting in a towering plant-like creature with immense regenerative power and destructive abilities. In the story, Biollante serves as both a tragic experiment and a major antagonist, embodying the dangers of genetic manipulation and human ambition.