sentence: Some ferns can grow large in  moist places.
sentences_before: Ferns do not have waxes or special cells on their surface that keep water from evaporating. They have roots, stems, leaves. Their stems may form runners, called stolons above the ground, or rhizomes below ground. The leaves are green an large, and may bear spores on the underside.
sentences_after: They can survive in more places than moss, but not so many as flowering plants.
concept_name: fern
headings: Fern
categories: Pteridophyta Vascular plants