austrian pine pinus nigra forest

alpha amber austrian balsam bark benzoin beta chemicals copaiba copal damar essential extraction forest forestry gum hard heptane incisions industry lac mastic monoculture nature naval niederapara sterreich nigra oils oleoresin perfumes peru pinaceae pine pinene pinus products resin resinite retsina rosin scars shellac stem stores styrac sulphate tapping terpines timber tolu trees turpentine varnish wood woodland wound