Primula maguirei is a perennial, herbaceous plant 50-100 millimeters (mm) (2-4 inches (in.)) high, with showy reddish-lavender flowers. Leaves are oblong and 50 mm (2 in.) long and 12 mm (0.5 in.) wide. P. maguirei has two types of flowers, the pin and thrum—this is referred to as heterostyly (Davidson and Wolf 2009). On the pin form flower, the female reproductive organs (pistil—produces ovules which become seeds) are higher than the male reproductive organs (stamen—produces pollen). The thrum form is the opposite (Davidson and Wolf 2009).