Another tower of Mojave Yucca with a bloomer on top and some Desert Bells below.

Pollination: One of the most interesting and well-studied aspects of yucca ecology is the symbiotic relationship between yuccas and their yucca moth pollinators. Mojave yucca relies solely on the yucca moth (Tegeticula yuccasella) for pollination. Seed production is thus entirely dependent on the availability of this pollinator, which while in the larval stage, feeds on a small number of seeds (generally around 3 percent). In years of extremely low pollinator availability, sexual reproduction may not occur.