a plant is a sink of impact
water_shamrock is not aquatic_plant. water_shamrock is aquatic_plant. calamintha_nepeta is plant. colutea is not plant. calamintha_nepeta is not plant. colutea_arborescens is plant. colutea_arborescens is not plant. colutea is plant. ipomoea_aquatica is not plant. sink_bugs is pests.