This book is an excellent reference for Pacific Northwest Flora and is the standard for identifying Pacific Northwest plants. "Flora of the Pacific Northwest: An Illustrated Manual" by C. Leo Hitchcock and Arthur Cronquist with thousands of black and white illustrations by Jeanne R. Janish. First published by the University Of Washington Press on 1973, this is the third printing, 1976. Large Hardcover, excellent condition, $7.00. 730 pages with thousands of plants listed. I'm in Gresham Oregon by Gresham Golf Course. Text or Email ok. Thank you for looking.