Rubus | Rubus idaeus | Rubus ursinus | Rubus ulmifolius | ''Rubus ursinus'' (''R. vitifolius'') | Rubus armeniacus | red raspberry (''Rubus idaeus'') | ''Tahina spectabilis'' foliage | Rubus phoenicolasius | Rubus parviflorus | Rubus leucodermis | Rubus laciniatus | Rubus coreanus | Rubus chamaemorus | ''Corolla spectabilis |
The larvae feed on a wide range of flowering trees and shrubs, including Vaccinium, Symphoricarpus, Rubus spectabilis and Oemleria cerasiformis.
Associated plants include Alnus rubra, Filipendula occidentalis, Rubus parviflorus, Rubus spectabilis, Saxifraga occidentalis, Saxifraga nuttallii, Saxifraga mertensiana, and Mimulus guttatus, though it often grows on slopes with few other plants around.