A flowerless plant is a type of plant that does not produce flowers. MOSS, ferns, acrogens, and liverworts are all examples of flowerless plants. MOSS is a small, soft plant that grows in clumps or mats in damp environments. Ferns are a type of vascular plant that reproduce by spores and have feather-like leaves. Acrogens are a type of non-vascular plant that reproduce by spores and lack true leaves, stems, and roots. Liverworts are a type of non-vascular plant that reproduce by spores and have flat, leaf-like structures.