Editing Pinus flexilis (section)

==== ''Pinus monticola'' ====
In the absence of cones, limber pine can also be hard to tell from [[Western white pine]] (''P. monticola'') where they occur together in the northern Rockies and the Sierra Nevada east slope. The most useful clue here is that limber pine needles are entire (smooth when rubbed gently in both directions), whereas Western white pine needles are finely serrated (feeling rough when rubbed gently from tip to base). Limber pine needles are also usually shorter, {{convert|4|-|7|cm|in|frac=4|abbr=on}} long, while western white pine needles are {{convert|5|-|10|cm|in|0|abbr=on}}, though the ranges overlap.