For 70 years, people have turned to one book to learn about Northwest trees: Trees to Know in Oregon. This new edition, retitled--Trees to Know in Oregon and Washington,--expands its scope to cover more territory and include more trees... The book was first published in 1950. Charles R. Ross, an Oregon State University Extension forester, wanted to introduce readers to the towering giants in their backyards. Since then,--Edward C. Jensen--has--stewarded...