The moral of rainbow fern

Pteris iridescens symbolizes longevity, because Pteris iridescens, as the earliest plant group that landed on land, has more than 65,438+00,000 species of pteridophytes in the world, with a survival history of more than 300 million years.

Among the national protected plants, ferns are endangered and rare, belonging to the national second-class protected plants. Pteris pteridoptera is not common in ferns, but it is more precious among rare plants.