Crossword clue: ancient; old. "pilgrimages to . . . ferne halwes." . chaucer.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward;