Guardian plant Groundcover Shade Tree Flowering Tree Water gardens Culinary Herb Medicinal Herb Vegetable Salad greens Cooked greens Cut Flower Dried Flower Will Naturalize Good as a cover crop Suitable as Annual Suitable for forage Useful for timber production Suitable for miniature gardens. The cells are eukaryotic (having a nucleus). The cell walls are composed of cellulose. Eating Methods In addition, they all have body plans that include leaves, stems, and roots. Autotrof organism, able to produce their own food by photosynthesis. 1 All seed plants share two characteristics. Already have roots, ty, and true leaves. Seed plants face many challenges, including standing upright and … They have vascular tissue and use seeds to reproduce. Characteristics of seed plants Multicellular organisms. Have chlorophyll. Most seed plants live on land. Edible Parts Bark Stem Leaves Roots Seeds or Nuts Sap Fruit Flowers.