Forest flora (5)

I believe the answer is:

ferns

(Other definitions for ferns that I've seen before include "Flowerless plants with feathery or leafy fronds" , "Plant, maidenhair or tree say" , "Ancient plants" , "Flowerless plants with feathery green leaves" , "Frondy plants" .)

I've seen this clue in the USA Today and the King Feature Syndicate.

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