Pitch pine ("Pinus rigida") may sometimes be present. Pitch pine ("Pinus rigida") is the most abundant tree here. It was given its scientific name, "Pinus rigida", by British botanist Philip Miller. On Martha's Vineyard, "E. i. imperialis" feeds almost exclusively on pitch pine ("Pinus rigida"). On Cape Cod it occurs with pitch pine ("Pinus rigida") and broom crowberry ("Corema conradii"). In Maine, it is associated with "Empetrum nigrum", "Pinus rigida", and small oaks. Pitch pine ("Pinus rigida") and Virginia pine ("Pinus virginiana") are common within their respective ranges. The pines include, primarily, pitch pine ("Pinus rigida"), and shortleaf pine ("Pinus echinata"). Pinus rigida, the pitch pine, is a small-to-medium-sized () pine.