mountain bush-honeysuckle Caprifoliaceae Diervilla
rivularis Gattinger symbol: DIRI
Leaf: Opposite, simple, ovate to elliptical, long pointed, 2 to 4 inches long, serrated margin, green above, slightly paler and pubescent below, especially when young; petiole very short to absent near the branch tips.
Flower: Yellow yellow-green, tube-like with spreading petals, 1/2 inch across, appearing in early summer.
Fruit: A dry, long-pointed, vase-shaped capsule, tips flare out into thin hairs.
Twig: Slender, ridged or lined, scales present at twig base, greenish red turning light brown, buds small.
Bark: Gray to light reddish brown, finely shreddy with age.
Form: Low suckering shrub (to 6 feet) with a densely sprawling habit that forms mounds.
Looks like: northern bush-honeysuckle - southern bush-honeysuckle - American fly honeysuckle - Amur honeysuckle
Additional Range Information: Diervilla rivularis is native to North America. Range may be expanded by planting. Download the full-size PDF map.
More Information: Fall Color
External Links: USDA Plants Database
All material © 2019 Virginia Tech Dept. of Forest Resources and Environmental Conservation; Photos and text by: John Seiler, Edward Jensen, Alex Niemiera, and John Peterson; Silvics reprinted from Ag Handbook 654; range map source information