SS5.1: Obtaining credit for area that was wooded/grass

Peter, Native plants and adapted plants are two different things. Native means indigenous to the site. Adapted includes basically anything that doesn't require active cultivation, e.g.: irrigation, pesticide application, to survive. Ergo, if a plant is there and it lives/grows on its own it's by definition adapted, so no elaborate plant identification is needed. The important caveat to 'Adapted' is that it excludes anything considered an invasive species or noxious weed. To meet the intent of the credit the area in question should be surveyed for these plants and they should be removed if present. Typically an agency in your state, e.g.: Agriculture, or Natural Resources, will maintain a list of what is considered an invasive or weed. An experienced landscape contractor should be able to identify weeds, so I think calling in a botanist would be overkill.