How are ferns different from flowering plants?

Ferns and flowering plants (angiosperms) are both vascular plants, meaning they possess specialized tissues—xylem and phloem—to conduct water and nutrients. However, they differ significantly in their reproductive strategies and structural complexity.1

Key Differences

• Reproduction: Ferns are lower vascular plants that reproduce via spores, which are single-celled units dispersed into the environment. In contrast, flowering plants are higher vascular plants that reproduce using seeds. A seed is a more advanced evolutionary innovation containing an embryonic plant, food-storage tissue, and a protective coat.123
• Gametophyte Stage: In ferns, the gametophyte (the sexual phase) is a small, independent, free-living plant called a prothallium. In flowering plants, the gametophyte is microscopic and entirely dependent on the parent sporophyte plant.2435
• Fertilization: Ferns produce flagellated sperm that require external water to swim to the egg for fertilization. Flowering plants have evolved pollen tubes, which carry sperm directly to the egg, eliminating the need for external water for fertilization.123
• Plant Structure: Flowering plants generally exhibit more complex body structures, including stems that branch laterally and vascular tissue arranged in distinct bundles.3