As the Latin term Populus candicans suggests, Balm of Gilead Buds are derived from a species of the poplar tree, which is indigenous to North America, where it is better known as the cottonwood tree. The resinous, aromatic unopened flower buds are harvested and made into dried herbs. These quality bulk herbs are then used as an ingredient in ointments and skin creams; the actual amount of Balm of Gilead Buds in such ointments is usually about 15 - 20%.