She is pale-haired and plump, with a sharp nose and inquisitive gray eyes.
Niande is not particularly strong in the One Power. Her level of strength is described by "The Wheel of Time Companion" as 27(15) which is a middle level in Aes Sedai hierarchy. With this level of strength she is unable to open alone a suitable gateway to Travel.
Niande has one Warder.
She figured out that Thom Merrilin had killed Galldrian; while she understood why, as Galldrian had had Thom's apprentice Dena killed, she was displeased with him at all the suffering it had caused Cairhien.
She is with Cadsuane Melaidhrin in the rebel camp outside Cairhien when a bubble of evil erupts forcing them to flee all the while protecting an unconsious Rand al'Thor who was stabbed by Padan Fain with the Shadar Logoth dagger.
After it Niande helped Cadsuane to bring Rand safely to the Sun Palace.