concentric tree rings

1680 × 1050

tree ring cross-section

2560 × 1600

Tree Growth Rings — Brown

2560 × 1440

Tree Growth Rings — Orange

1920 × 1200

tree ring cross-section

1920 × 1080

tree ring cross-section

1920 × 1200

tree ring cross-section

2950 × 2094

Cross-section of Tree Trunk — Gray, Textured

1969 × 1291

stacked wood logs

1600 × 1200

Cross-section of Tree Trunk

1024 × 768

tree stump with growth rings

2950 × 2094

tree stump cross-section

2950 × 2094