#king fern

• Adiantum caudatum — A species of terrestrial and lithophytic fern belonging to the Pteridaceae family, distributed across the tropical and subtropical regions of Asia and Africa, popularly known as the walking fern. The plant is structurally recognized for its long, pinnate, and arching fronds, which frequently develop vegetative buds at the elongated tail-like apex; these buds root upon contact with the soil, enabling vegetative propagation and rapid colonial expansion in shaded, rocky habitats.
• Angiopteris evecta — A species of giant terrestrial fern in the Marattiaceae family, native to the tropical regions of Australia, Southeast Asia, and Oceania, recognized as one of the largest ferns in the world due to its spectacular bipinnate fronds that can reach lengths of up to 6-9 meters. This well-defined taxonomic entity thrives in warm, humid rainforests, possessing a massive fleshy rhizome and sporangia grouped into synangia, and is considered an archaic plant of significant importance for studying pteridophyte evolution.