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
Average percentage return or CAGR, "R", can be obtained by solving the equation: . The value of "R" that makes this equation true is 0.2, or 20%. This means that the total return over the 2-year period is the same as if there had been 20% growth each year. Note that the order of the years makes no difference – the average percentage returns of +60% and −10% is the same result as that for −10% and +60%. This method can be generalized to examples in which the periods are not equal. For example, consider a period of a half of