marsh andromeda; marsh bellflower; marsh buggy; marsh clematis; marsh cress; marsh elder; marsh felwort; marsh fern; marsh gas; marsh gentian; marsh hare; marsh harrier; marsh hawk; marsh hen; marsh horsetail; marsh mallow; marsh marigold; marsh milkweed; marsh orchid; marsh pea; marsh pink; marsh plant; marsh rosemary; marsh st-john's wort; marsh tea; marsh trefoil; marsh wren;