24.4 Diversity of Life: Plantae Cones
- White pine (Pinus strobus): long, often resinous
- Austrian pine (Pinus nigra): large, no prickles
- Scots pine (Pinus sylvestris): small, prickles
- Norway Spruce (Picea abies): long and smooth
- Douglas Fir (Pseudotsuga menziesii): protruding bracts
- Arborvitae (Thuja occidentalis): small, round
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