The size of a population and its diversity are important aspects of a healthy population. The critically imperiled species Mimulus gemmiparus reproduces asexually by mode of the bulbil, a novel structure that is a combination of an axillary meristem and leaf not found in its sister species, Mimulus guttatus. Asexual reproduction may lead to decreased genetic diversity, increasing the endangerment of the plant. We have an interest in how light conditions affect the structure of the plant, specifically its branching and bulbil and flower production. The focal point of this study is to detect differences in architecture and reproductive potential in Mimulus gemmiparus under varying light intensity. This is relevant for conservation studies as reproduction is a direct result of the architectural complexity of the plant. I devised two treatments for each species, one with shade cloth and one without. Hankin’s Gulch was the initial population chosen because it has not been found to produce flowers in nature, but produces flowers in a growth chamber or greenhouse setting. After experiencing some complications with germination, a different population was chosen and the experiment was begun again with the population, Peaceful Valley. So far in the study, we have observed some pigmentation from anthocyanin in the full light treatment and far fewer in the shade treatment. We have also observed some elongation between nodes in some plants within the shade treatment. We will continue to monitor the plants until the end of their life cycle and will perform a final measurement of numbers of flowers and nodes, height, internode length, and branching. We will finish with logistic growth models and significance testing between treatments and species. What we find from this study could contribute to conservation efforts and a greater understanding of the species.