Eastern Marsh Fern (Thelypteris palustris), fam. Thelypteridaceae.
   Grows in the forest, in swamps and waterlogged shady places. The leaves are not arranged in rosettes, since the plant has long creeping rhizomes. The spore are spread in June-July. In many regions this is a rare threatened species, but in DVRZ/Kyiv forest it is rather common for now.

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