Vagaman got its name from the celebrated Vagai blooms from the Sangham or Chankam age onwards like the Kurinji blooms that named the Nilgriris or the blue mountains. Vagai was once the totem tree of certain early clans of the Chera dynasty in Kerala. Vagai Perumtura on the river Perar got its name from this iconic clan tree of the early Cheras in Vanneri. Some of the Vagai trees are still surviving in pockets like Ulupooni or Ulpuni region in Vagaman above 1000 m. They are also called Eeyal Vakai.
Ulpuni means the vessel within. It is a quiet and submersed shola grassland bowl or green shola vessel submerged or anchored within the Vagaman highland plateau. It is a biodiversity hot-spot and is teaming with endemic rare alpine flora and fauna amidst the pressures of plantation, construction and tourism industries.