Seeds Pterospermum acerifolium Karnikara Tree Dinner Plate Tree or Bayur Tree. It can grow to 30 to 40 feet tall and 25 feet across. These trees are wonderful for their oxygen giving qualities as their huge leaves produce lots of it. The tree gets its name from the huge leaves that are used for dinner plates in some parts of the world. The fragrance of the spring blossoms is very nice. Hardy in zones 8b to 11.