Giolcach
Fásann siad seo in uisce éadomhain ar imeall locha. Déanann siad athchúrsáil ar chothaithigh iomarcacha agus cuireann siad dídean ar fáil d’éisc ó chreachairí éan agus mamach. Cabhraíonn siad chun bruacha locha a dhaingniú agus cuireann siad srian leis an damáiste a dhéanann tonnta bád do na bruacha céanna. Baintí leas as giolcacha sa tseanaimsir do dhíonta tí.
Reed
Growing in shallow waters on the edges of lakes, reeds recycle excess nutrients and provide shelter for fish from bird and mammal predation. They help stabilise the banks of lakes and inhibit wave and boat-wake damage to lakeshores. Reeds were traditionally used for thatching roofs.