Native to (or naturalized in) Oregon:
- Deciduous tree, but may be shrubby and spread into wide thickets, to 30-40 ft (9-12 m) tall, usually with a long trunk, stout spreading and ascending branches, forming a rounded crown, armed with thorns 0.8-2.5 cm long. Leaves alternate, simple, broad obovate to ovate, 2.5-5 cm long, 1.5-4 cm wide, entire near base, doubly toothed above, often somewhat lobed near apex, thin, smooth and glossy above, paler below, petiole 13-19 mm long. Flowers white, about 13-15 mm wide, 5 styles, on long slender stalks, in broad clusters. Fruit ovoid, reddish-purple to black, glossy, 8-10 mm wide, pulp sweet and succulent.
- Sun or part shade. Moist to dry sites.
- Hardy to USDA Zone 5 "Contradictory information concerning the distribution of Douglas hawthorn is plentiful" (http://www.fs.fed.us/database/feis). Its native range extends from southeastern Alaska, south to British Columbia, Alberta, Washington, Oregon and to northern California. It is also found in more inland locations in Idaho, Montana, Utah, Nevada, Colorado, and Wyoming, and in disjunct regions around the western Great Lakes (Minnesota, northern Michigan, southern Ontario, Saskatchewan).
- douglasii: after David Douglas (1799-1834), Scottish plant collector who several times travelled to and collected plants in the Pacific Northwest.
- Oregon State Univ. campus: southeast of Peavy Hall, near main north-south sidewalk.