When you render a building and its surrounding site, you may want to show landscaping options, such as plants and other forms of vegetation.
In a Revit plant family, you can use an RPC file to specify a render appearance. Revit provides several RPC families for trees and plants (for example, RPC Tree - Conifer, RPC Tree - Deciduous, and RPC Shrub). In each family, types provide render appearances for different species of trees and plants. For example, when you load M_RPC Trees - Conifer.rfa into a project, the Type Selector displays a list of conifers to choose from. Select the desired RPC tree, and then place it in a project.
In line and shaded views, a placeholder represents the plant. Revit offers autumn versions of many deciduous trees. To control the size of a plant, you can modify its type parameters in the family or in a project.