Trees of the Guadalupes. Acer grandidentatum occurs in canyons and moist soils of the mountains of Arizona, New Mexico, and west Texas. The tree may grow to a height of 50 feet. Leaves are opposite and typically 21/2, inches in diameter, with three broad, blunt lobes. Fruits occur in winged pairs called samaras. The bark is gray to light brown and may be smooth or scaly. This tree is responsible for the brilliant reds and yellows during the fall color display.