Edward C. Jensen

American Northwest (2) arbres (17) Biologie (4) Botanique (6) Central Oregon (1) color photographs (2) environmental (2) extérieurs (2) gardening reference (1) greens (1) guide de la nature (7) Guide touristique (8) Histoire naturelle (3) Horticulture (4) Identification (2) Jardinage (4) Livre de poche (2) Manuel scolaire (1) Nature (9) non-fiction (8) Nord-Ouest Pacifique (5) Oregon (18) OSU (2) OSU Department of Forest Ecosystems and Society (2) owns (1) plantes (9) Plants of PNW (1) PNW (2) Possédé (1) REF (8) rudyschmid 19/put in collection (1) Science (8) shrubs (2) Sylviculture (5) Taxinomie (2) Trees -- Oregon (2) Trees in Oregon and Washington (1) Vert (2) Washington (1) x-2019-audit (1)