Complex sentence: Most flowers visited are inflorescences of small flowers or have dense filaments, giving them the appearance of a bottle brush, often because of the conspicuous projecting stamens as in many Leguminosae (Mimosoideae, Myrtaceae, and Combretaceae).
Split into simpler sentences: Most flowers visited are inflorescences of small flowers or have dense filaments, giving them the appearance of a bottle brush. Often because of the conspicuous projecting stamens as in many Leguminosae (Mimosoideae, Myrtaceae, and Combretaceae).