Monadelphous androecium occurs in ________.
Hibiscus
The androecium shows different degrees of cohesion of anthers and filaments in stamens. When the filaments are fused with each other is called adelphous. Monadelphous condition arises when the filaments are fused or united to form a single bundle while the anthers remain free. Such monadelphous condition of androecium is seen in Hibiscus.
Hence, the correct answer is 'Hibiscus'