T Hy Arboretum located p ridge hills Portland, Oregon, USA. I founded 1922 y collection timber industry representatives, U.S. Forest Service, Portland Parks department, enthusiasts.

T 232- (0.94 ²) (94 ) arboretum hosts j under thousand individual trees shrubs eleven hundred species world. M labels identifying common scientific names region origin.

T arborteum twelve miles (19 ) trails ( which suitable wheelchairs), visitor center, indoor classroom seating 40 people, picnic shelter meadow. Volunteer guides available since 1970s.

T arboretum located miles (3 ) downtown Portland within Washington Park, close Oregon Z, International R T Garden. T Arboretum p public accessible several points Washington P Macleay Trail Forest P. T volunteer-staffed visitor's center located center p where visitors information about p trees; visitor's center starting point periodic volunteer-guided tours.

O D Redwood, y known deciduous conifers (needle bearing trees their leaves winter). T species thought extinct known y fossils, rediscovered remote valley China early p twentieth century. T reintroduced western hemisphere through saplings planted Hy Arboretum. T trees soft, short needles distinctive branches p folds trunk.

Cynthia Haruyama current executive director Hy Arboretum Friends Group. S director since 2001.