There are different insights into which plant or tree is associated with NGeatal. Most associate the reed with it, but this is a late addition. Others associate the Broom tree. Although NGetal is translated from Irish into English as reed in the dictionary from 1821.
Reeds can be made into writing implements and paper, thus associating the reed with knowledge, scholarship and wisdom. Reed can also be used for thatching, proving well needed protection.
Physicians would use reeds as tools for administering treatments, but arrows, the weapons of death, were also made out of reeds. Because of these two contrasting uses the reed gained an association with both death and healing.
Reeds could also be used in the making of music instruments, making it even more a tool for Bards.
Reeds grow near the edge of the land, binding loose sandparticle floating in the water. The plant can be used for cleaning the water.
Broom is associated with cleaning up. Space clearing, shamanic healing, astral travel. Restoring harmony. Letting go, clearing the mind of clutter. Making a clean sweep. Broom is also named in the fourth branch of the Mabinogi where Blodeuwedd or Blodeuedd, (Middle Welsh composite name from blodeu ‘flowers, blossoms’ + gwedd ‘face, aspect, appearance’: “flower face”), is the wife of Lleu Llaw Gyffes in Welsh mythology, made from the flowers of broom, meadowsweet and the oak by the magicians Math and Gwydion. She is later transformed into an owl.
Both broom and reed have stability, harmony, healing and death in common.