Botany

Bryophyte

선태식물

Definition

A non-vascular plant such as mosses, liverworts, and hornworts that lacks true roots, stems, or leaves.

Detailed Explanation

Bryophytes were among the first land plants, colonizing terrestrial environments over 450 million years ago. Lacking lignified vascular tissue, they remain small and dependent on moisture for reproduction — sperm must swim through water to reach eggs. Despite their simplicity, bryophytes play crucial ecological roles: peat mosses (Sphagnum) store approximately one-third of terrestrial carbon in boreal and arctic peatlands, making them globally significant carbon sinks.

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