The uniformity of the bogs and marshes as a whole is a factor in the mode of dispersal of the seeds, the wind playing an important part generally.

The Great Spearwort, Sundew, Bog Pimpernel, Marsh Red Rattle (in part), Butterwort, Jointed Rush, Galingale, Common Spike Rush, Great Prickly Twig Rush, Hummock Sedge, Great Prickly Sedge rely upon their own special mechanisms for the dispersal of the seeds at no great distance from the plant.

Animals, especially birds, disperse the berries of the Cranberry and the Bog Myrtle. Water is responsible for the dispersal of the seeds of the Water Violet and the Bladderwort.