Answer:
The number of butterflies will start to decline.
Step-by-step explanation:
The butterflies' number will get reduce, as the larvae of the swallowtail butterfly consume the mentioned plant. The plants are declining in huge amounts and are becoming endangered primarily because of habitat loss as the wetlands in Georgia are getting cleared for the purpose of construction and agricultural activities.
As the butterfly species totally rely on the plant as its sole source of nourishment their numbers will decrease as the population of the plant is also getting reduced.