Weeds are plants that quickly root in an ecosystem, often abetted by evolutionary advantages such as hardiness and efficient seed dispersal. In ecological succession—the study of how ecosystems develop, change, and adapt—weeds are the first to grow in a barren area. However, the linear logic of succession is often challenged by human interventions such as transplantation, plant trade, and urbanization. Weeds are thus commonly understood as the undesirable plants in a planned growing environment. Many voices challenge this characterization, however, based on their edibility, usefulness, or hard-earned opportunism (see Garden; “Filling Spirits”; Liao in SDUK12; Cooley in SDUK04).