Pinus cembra has 5-needles per bundle. The 2-3 inch needles are stiff, dark green with white stomatal lines on the underside creating a bluish green cast to that side of the needle. The densely set foliage remains on the stem for 4 to 5 years.
Karren Wcisel, TreeTopics.com
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Pinaceae, tree, conifer, cone, needle, evergreen, Pinus cembra, Swiss stone pine