Crispleaf Golden Buckwheat
Not all wildflowers bloom during the day. Some take advantage of cooler night temperatures to open their flowers. These evening-blooming plants include evening primrose, sacred datura, sand verbena, and yucca. The yucca and the yucca moth have a fascinating dependency on one another which includes trysts in the night. After mating, the female moth gathers pollen from a yucca flower and packs it into a ball. She then flies into the night until locating another yucca flower. Here she lays eggs in the base of the flower's pistil and packs pollen from her pollen ball down into the pistil, providing food for her young when they hatch. She visits several flowers during the night, each time distributing the pollen from flower to flower. Thus she fertilizes the yucca flowers while ensuring that her young will have nutrients to live on. Yucca plants and moths have a symbiotic relationship: yucca flowers are only pollinated by yucca moths and yucca moth larvae only feed on yucca pollen.