Scientific name
Pseudotsuga menziesii
Also Known As
Coastal douglas-fir, Interior douglas-fir
Douglas-firs are pyramid-shaped evergreen trees with needles that attach directly to the twigs. The needles are spirally arranged but can appear flattened in 2 rows due to twisting at the base of each needle.

Scientific name
Juniperus virginiana
Also Known As
Cedar tree, Southern redcedar, Virginia redcedar
Eastern redcedar is a small, egg-shaped, dense, native evergreen tree that can grow from 10 to 40 ft in height. Mature branches have overlapping, scale-like leaves.

Scientific name
Pinus strobus
Also Known As
Northern white pine, Soft pine, White pine
White pines have slender needles in clusters of 5 and cones averaging 5 inches long in contrast with western white pine whose cones are about 10 in long.

Scientific name
Pinus taeda
Loblolly pines are common trees in the southeastern United States and are sometimes referred to as southern yellow pines. Loblolly means "low, wet place," however you can find these trees in uplands as well as lowlands. These trees can grow to 115 feet in height. An interesting feature of Loblolly pines is that they often retain their needles for up to two years.

Scientific name
Pinus palustris
Also Known As
Georgia pine, Longstraw pine, Southern yellow pine
Longleaf pine is a tall evergreen tree found in the southern US. Needles are in bundles of three and can be between 8 to 18 in long. The cones are 6 to 10 inches long.

Scientific name
Thuja occidentalis
Also Known As
American arborvitae, Eastern arborvitae, Eastern white cedar, giizhik (Ojibwe), Swamp cedar
Known as giizhik by the Ojibwe. Small to medium sized tree that can be found along streams, in bogs and cedar swamps. When crushed, the needles will produce an aromatic cedar smell.

Scientific name
Pinus edulis
Also Known As
Colorado pinyon, Two-leaf pinyon
Pinyon pines are short branched trees or shrubs with needles in bundles of two, distinguishing it from other pinions in the southwestern US.

Scientific name
Pinus ponderosa
Also Known As
Bull pine, Western yellow pine, Yellow pine
Ponderosa pine is the iconic pine of the interior west, with its thick colorful bark which can be bright orange or yellow in color in open sunny spots. It is the only 3-needle pine in the Rockies.

Scientific name
Picea sitchensis
This coniferous tree has stiff, prickly needles, approximately 15-25 mm long. The grey-brown, scaly "alligator skin" bark is distinctive.

Scientific name
Thuja plicata
Also Known As
Redcedar
This is a tall tree easily growing to 150-200 feet, with a conical to irregular crown and many leaders. The dense branches are arching and pendulous, with flattened frond-like, fanning branchlets providing protection from the elements.