Retinispora (Hinoki)
It is also called Japanese cypress. The height is 40m and the diameter is 2m. Branches spread horizontally.
The bark o is reddish brown and fibrous, and peels vertically. Leaves face each other and are thick and 1~1.5mm long. They are small like needles and the shape of the parts where the leaves breathe is like the shape Y. The tree is indigenous to Japan but is also grown in the southern region in Korea.
Features of Retinispora
All trees generate phytoncide. The amount, characteristics and nature of each is very different.
Needleleaf trees have a powerful defense tool so that they do not leach nutrients. The tool is phytoncide.
But the amount is different among needleleaf trees. Between pine trees and nut pine trees, nut pine trees generate more phytoncide than pine trees. In a pine grove, there are weeds but in a nut pine grove, there are no weeds. That is, phytoncide prevents the growth of other plants. This means that the phytoncide of nut pine trees is superior to that of pine trees.
| Tree species |
Winter |
Summer |
Tree species |
Winter |
Summer |
| Fir |
2.9 |
3.3 |
Mountain tree |
3.6 |
4 |
| Korean fir |
3.9 |
4.8 |
Retinispora |
5.2 |
5.5 |
| Pine |
.7 |
1.3 |
Chamaecyparis pisifera |
3.1 |
3.3 |
| Nut pine |
1.6 |
2.1 |
Juniper |
1.8 |
1.4 |
| Pinus rigida |
0.7 |
0.8 |
Cupressaceae |
1 |
1.3 |
Source: Content (ml/100g) of essential oil of needleleaf tree leaves, Park Jae Chul, Environment and landscaping, 1991 |
