douglas pine การใช้

• A Weymouth pine, for instance, represents Maine, a palm tree represents Florida, maple trees represent Vermont, New York, Wisconsin and West Virginia, a Douglas Pine represents Oregon and a Giant Sequoia represents California.
• Tests have shown almost every variety of pine grown in California-- including the Douglas pine, mainstay of the lumber industry-- is at risk from a disease for which there is no cure and no proven preventative measures.