Aeka's name is taken from an old Japanese word, "Aekanaru", which means "delicate" or "frail."
The Tear of the Imperial Family ("Ouke no Namida") is a special Jurai flower used for somber occasions. When an Imperial family member dies, Tears of the Imperial Family are planted around that member's tree, which becomes a gravesite memorial.
Aeka's personal tree is Ryu-oh, a second generation offspring of Tsunami. The branches of Ryu-oh protected Tenchi when he was seriously injured by Kagato's attack (OVA Ep. 6). Aeka later replanted Ryu-oh with Washu's help.