The queen palm (Syagrus romanzoffiana) is among the largest of the palm varieties and the most colorful. Like most palm trees, the queen palm is comprised of a long, thin trunk and green fronds at the very top of the tree. Since its discovery, it has been renamed three times. Common places to find the queen palm are along walkways in places such as San Diego, Miami and Phoenix. This tree does best in USDA hardiness zones 10 and 11 (both tropical and subtropical) and it will die from frost.
Look at the height of the tree. The queen palm stands at a height of 40 feet on average.
Observe the tree’s coloration. The queen palm’s trunk is light gray and its leaves will be dark green and glossy. The flowers are a pale yellow color.
Observe the shape of the leaves. The queen palm's leaves long, thin and packed together in an orderly fashion along the branch. Queen palm leaves are also referred to as fronds.
Look at the palm tree's flowers. The flowers on a queen palm are exceptionally showy being comprised of long strands of tiny flowers. On average a queen palm's flower structure measures 2 feet in length.
Evaluate the leaf scars. The leaf scars on a queen palm tree will cover the entire trunk and be evenly spaced throughout. The scars are about 4 inches long and linear in appearance.