Grapefruit Closed. Mini PrintThe grapefruit is a subtropical citrus tree known for its relatively large sour to semi sweet, somewhat bitter fruit. Grapefruit is a citrus hybrid originating in Barbados as an accidental cross between two introduced species sweet orange and pomelo both of which were introduced from Asia in the seventeenth century. Printed with Japanese archival ink on a matte Hahnemhle paper in our own studio in rural Copenhagen, Denmark. Frame is included. Print