Final answer:
Bermudagrass has the greatest range of adaptation among the grasses listed, with the ability to thrive in various environmental conditions and is known for its resilience. It utilizes a variety of adaptations, including a wide dispersion through seeds and geographical variance in cold tolerance, to maintain and expand its range.
Step-by-step explanation:
The range of adaptation refers to the variety of environmental conditions under which a species can survive, thrive, and reproduce. Among the grasses listed, Bermudagrass (Cynodon dactylon) typically has the greatest range of adaptation, which includes tolerance to a wide range of temperatures, the ability to survive in different soil types, and resilience under varying degrees of moisture availability. This adaptability makes Bermudagrass an invasive species in some regions, capable of outcompeting local flora and adapting to the changing climate conditions, as suggested by the studies on other invasive grass species.
Further examples of adaptations include the plant's ability to produce numerous seeds, which serve as a primary agent of dispersal, expanding its geographic range. Bermudagrass also exhibits cold tolerance that varies geographically, allowing it to survive in both warm and moderately cold climates. Indeed, as climates shift with increasing urbanization and CO2 levels, some grasses, like Bermudagrass, might even exhibit changes such as earlier flowering times, an adaptive response that can support longer growing seasons in changing environmental conditions.