The flowers are 1.5–4 cm diameter, with five petals, white or yellow; in some species the flowers are bicoloured with a dark red or brown basal spot on each petal to act as a nectar guide for pollinating insects.
Flowers range from 1.5–4 cm in diameter and feature five petals that are white or yellow; some species display a two-colored pattern, including a dark red or brown spot at the base of each petal to attract pollinators.