alnus rubra(n = noun.plant) oregon alder, red alder - large tree of Pacific coast of North America having hard red wood much used for furniture;
is a kind of alder, alder tree
is a member of alnus, genus alnus

actaea rubra, alnus, alnus crispa, alnus glutinosa, alnus incana, alnus maritima, alnus rhombifolia, alnus rugosa, alnus serrulata, alnus veridis, alnus veridis crispa, alnus vulgaris, beta vulgaris rubra, cephalanthera rubra, genus alnus, morus rubra, piranga rubra, quercus rubra, spergularia rubra, ulmus rubra