Relating to or resembling ferns, or pertaining to the family of fern plants.
From Latin 'filix' (fern) + '-ical' suffix, creating an adjective to describe fern-related characteristics.
When botanists use 'filical' to describe something, they're invoking one of the most ancient plant groups—ferns have been on Earth since before dinosaurs and still use the same basic spore-reproduction strategy.
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