Abies

Abies balsamea (L.) P.Miller balsam fir Native

Abies concolor (Gordon & Glend.) Lindley ex Hildebrand white fir, Colorado fir Waif

Cedrus

Cedrus libani A.Rich. cedar of Lebanon Cultivated

Larix

Larix decidua P.Miller European larch Introduced

Larix laricina (DuRoi) K.Koch tamarack, American larch Native

Picea

Picea abies (L.) H.Karst. Norway spruce Actually Invasive European spruce has a tendency to displace natural vegetation. It is considered invasive in Canada. It shows invasive behavior in national parks of North Carolina, Tennessee, Maryland, and Hawaii (WeedUS).

Picea engelmannii Parry ex Engelm. Engelmann spruce, white spruce, mountain spruce Exotic

Picea glauca (Moench) Voss white spruce Introduced

Picea mariana (P.Miller) B.S.P. black spruce Native

Picea pungens Engelm. blue spruce Waif

Picea rubens Sarg. red spruce Native

Pinus

Pinus banksiana Lamb. Jack pine Waif

Pinus mugo Turra mugo pine, Swiss mountain pine Waif

Pinus nigra Arnott Austrian pine Introduced

Pinus ponderosa Douglas ex C.Lawson ponderosa pine, bull pine, blackjack pine Exotic

Pinus resinosa Ait. red pine Native — Watch-Listed

Pinus rigida P.Miller pitch pine Native

Pinus strobus L. white pine Native

Pinus sylvestris L. Scotch pine, Scots pine Introduced

Pinus sylvestris 'Watereri' cultivar of Scots pine Cultivated

Pinus thunbergii Parl. = Pinus thunbergiana Franco Japanese black pine Likely Invasive

Pseudotsuga

Pseudotsuga menziesii ssp. glauca (Beissn.) A.E.Murray = Pseudotsuga menziesii var. glauca (Mayr) Franco = Pseudotsuga douglasii var. glauca Mayr Rocky Mountain Douglas fir Waif Scottish botanist D.Douglas introduced the tree to cultivation in Europe. Another Scottish naturalist, A.Menzies had previously collected first samples of the species during his global voyage on board the HMS 'Discovery.'

Pseudotsuga menziesii (Mirbel) Franco ssp. menziesii = Abies menziesii Mirbel = Pseudotsuga menziesii (Mirbel) Franco var. menziesii = Pseudotsuga menziesii ssp. viridis (Schwer.) Silba coastal Douglas fir, Coast Douglas fir Introduced Scottish botanist D.Douglas introduced the tree to cultivation in Europe. Another Scottish naturalist, A.Menzies had previously collected first samples of the species during his global voyage on board the HMS 'Discovery.'

Tsuga

Tsuga canadensis (L.) Carr. eastern hemlock Native