Reaction wood(RW) is formed in order to restore the former position when plants have been tilted by the environmental stress such as wind, snow or slope. Compression wood(CW) is composited of thick cell walls with lignin and functions to push the tilted stem upward at the bottom of stem in gymnosperm while tensile wood is abundant cellulose walls formed at the upper side of stem to pull the stem and branches in angiosperm. CW of annual rings shows dark color, eccentric rings and specially banded spirals. CW has low economical efficiency to be shrink or distorted during the mill and drying but the variant pines not to form CW has replaced the maritime pines in europe. However, the eccentric growth in branches and stems was also caused by the phototropic growth which shows the asymmetric ring wides to grow toward the rock or downward to water level of the lake without CW formation. Such a normal wood is different from CW because wide rings support stem enough to burden the gravity or mechanical stress without CW. The canopy of tree can also lead the directional growth of stem and thereafter long branches contribute to form the wide rings asymmetrically. Namely, the restoring growth of CW showing eccentric annual rings is not the same as regrowth or juvenile phototropic growth.