DENDROLOGY

Detailed explanation-1: -Nonvascular Plants. Nonvascular plants (often referred to collectively as the bryophytes) include three groups: the mosses (Bryophyta), approximately 15, 000 species; liverworts (Hepaticophyta), approximately 7500 species; and hornworts (Anthocerophyta), approximately 250 species (Table 1).

Detailed explanation-2: -Moss are non-vascular plants and its presence on the flower bed is a symptom of soil conditions that prevent some flowers and shrubs from growing. What plants are included in nonvascular plants? Nonvascular plants include liverworts, hornworts, and mosses. They lack roots, stems, and leaves.

Detailed explanation-3: -Bryophytes is the informal group name for mosses, liverworts and hornworts. They are non-vascular plants, which means they have no roots or vascular tissue, but instead absorb water and nutrients from the air through their surface (e.g., their leaves).