Besaama was a female Tarasin who lived on the planet Cularin during the waning years of the Galactic Republic.
Biography
When Besaama was twelve, she discovered the Tree, a tree that was used as a base by the Wyrd, while walking home through the jungles of Cularin. She entered the tree and two days later, she re-emerged as a member of the Wyrd, having given in the dark side of the Force. Besaama was later redeemed and she abandoned the dark side.
Sources
Making of a Witch on Wizards.com (original site is defunct) (First mentioned)