関連ワード:  is rose unisexual plant    is rose plant unisexual or bisexual    is rose unisexual flower    is sunflower unisexual flower    is rose flower unisexual or bisexual    is marigold unisexual flower    is sunflower a unisexual plant    is marigold flower unisexual or bisexual    is china rose unisexual flower    is rose unisexual