marsh horsetail(n = noun.plant) equisetum palustre - scouring-rush horsetail widely distributed in wet or boggy areas of northern hemisphere;
is a kind of horsetail

burweed marsh elder, common horsetail, field horsetail, horsetail, horsetail family, horsetail lichen, horsetail milkweed, long-billed marsh wren, marsh, 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 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, ngaio marsh, perennial salt marsh aster, reginald marsh, rough horsetail, salt marsh, salt marsh mallow, short-billed marsh wren, swamp horsetail, variegated horsetail, water horsetail, wood horsetail