Viscaceae (formerly the Loranthaceae)
Fir Dwarf Mistletoe: Arceuthobium abietinum - Primarily found on the genus Abies.
American Dwarf Mistletoe: Arceuthobium americanum - Primarily found on Pinus contorta, but may also be found on Pinus albicaulis.
Western Dwarf Mistletoe: Arceuthobium campylopodum - Found primarily on the genus Pinus.
Limber Pine Dwarf Mistletoe: Arceuthobium cyanocarpum - Found primarily on Pinus flexilis, but may also be found on Pinus albicaulis.
Douglas Fir Dwarf Mistletoe: Arceuthobium douglasii - Found on Pseudotsuga menziesii.
Larch Dwarf Mistletoe: Arceuthobium laricis - Found on Larix occidentalis.