Quercus prinoides var. "prinoides". The dwarf chinkapin oak is a shrub or small tree that typically only grows to 13–20 feet (4–6 meters) tall and 13–20 feet (4–6 meters) wide. It sometimes spreads vegetatively by means of underground rhizomes. The leaves of dwarf chinkapin oak closely resemble those of chinkapin oak, although they are smaller: 2-6 inches (5–15 cm) long, compared to 4-7 inches (10–18 cm) long for chinkapin oak. The acorns are 1/2 to 1 inches (15–25 mm) long, with the cup enclosing about half of the acorn. While similar in foliage and fruits, but with smaller leaves, the dwarf chinkapin
Human hair color years old, 74% had some grey hair, covering an average of 27% of their head, and approximately 1 in 10 people had no gray hairs even after the age of 60. Children born with some hair colors may find it gradually darkens as they grow. Many blond, light brown, or red haired infants experience this. This is caused by genes being turned off and on during early childhood and puberty. Changes in hair color typically occur naturally as people age, eventually turning the hair gray and then white. This is called achromotrichia. Achromotrichia normally begins in the early to mid-twenties