DENDROLOGY

Detailed explanation-1: -Rhizoids are structurally and functionally related to vascular plant root hairs. Ferns belong to the Phylum Pteridophyta and have true strong roots that absorb water and minerals. Underground stems (rhizoids) are the feature of Phylum Bryophyta that securely fastens the thallus to the substratum.

Detailed explanation-2: -rhizome, also called creeping rootstalk, horizontal underground plant stem capable of producing the shoot and root systems of a new plant. Rhizomes are used to store starches and proteins and enable plants to perennate (survive an annual unfavourable season) underground.

Detailed explanation-3: -Seedless vascularHave underground stems called rhizomes. Include ferns, horsetails, and club mosses. PerennialsAre angiosperms that can live for three or more years. BiennialsAre angiosperms that live for two growing seasons to fully develop.