quercus rubra, pteridium aquilinum, corylus avellana, castanea sativa, fraxinus excelsior, quercus robur, lonicera periclymenum, rabelera holostea, convallaria majalis, glechoma hederacea, holcus lanatus, lamium galeobdolon, polygonatum multiflorum, hedera helix, moehringia trinervia, sorbus aucuparia, circaea lutetiana, dicranella heteromalla, lophocolea heterophylla