 In undisturbed habitats, this and other species of "Lasthenia" are pollinated by specialist bee species, primarily in the genus "Andrena".Studies in Solano County natural and restoration habitats have shown variability between visitation rates to the two types of colonies; however, plant propagation rates were found to be similar between natural colonies and introduced ones, implying pollination is not a limiting factor of propagation.An alternative conclusion is that members of one particular insect family, Sciaridae, are also efficient pollinators of "L. conjugens", since it was the only insect family to visit the restoration colonies in significant numbers (the specialist bees are absent from these areas).