Native to (or naturalized in) Oregon:
- Deciduous shrub, upright and spreading, to 15-20 ft (4.5-6 m) tall, twiggy. Pith of mature stems is hollow and white or tan. Leaves opposite, simple, ovate-elliptic to ovate-lanceolate, with a tapered tip, 5-8 cm long, about 1-3.5 cm wide, margin entire, base usually wedge-shaped (cuneate), rarely rounded, dark green above and lighter below, pubescent on the veins of both surfaces; petiole 3-8 mm long, glandular-pubescent. Flowers tubular, white changing to yellow, about 2.5 cm long, in axillary pairs, five petals, upper four fused, fragrant. Fruit matures in autumn; it is orange-red, red to very dark red, a berry, semi-translucent, spherical, 2–6 mm diam., with numerous seeds.
- Sun to deep shade, very adaptable. Caution: This is a highly invasive species and may quickly overtake a site by forming a dense shrub layer that crowds and shades out native species. It is a noxious weed and has been banned in some states.
- Hardy to USDA Zone 3. Native to temperate Asia; found in northern and western China, Korea, Japan and southeastern Russia.
- Amur Honeysuckle: it is found to the areas surrounding the Amur River which forms the border between the Russian Far East and Manchuria in China.
- maackii: in honor of Richard Maack (1825-1886) a Russian (actually Estonian) naturalist, geographer and anthropologist. He is most known for his exploration of the Russian Far East and Siberia, particularly the Ussuri and Amur River valleys (Wikipedia).