Glossy buckthorn(Rhamnus frangula) is a deciduous shrub or small tree that can reach heights of 20 feet. Its main stem can grow up to 10 inches in diameter but is more commonly 1-3 inches in shrub form. Leaves are dark-green and glossy on top with a dull underside. They are alternate along the branch with 8-9 pairs distinct upcurved veins. Small, round, black berries ripen in the fall and serve as the primary spread mechanism for this species.
NOTE: If you receive a "sign in" message, click cancel to continue. Confirmed observations of Glossy buckthorn submitted to the NYS Invasive Species Database. For more information, visit iMapInvasives
Glossy buckthorn is adapted to a wide variety of site conditions and may be found along forest edges, right-of-ways, in canopy openings, and open forested wetlands. It is often associated with moist soil.
Threats & Impacts:
Glossy buckthorn grows in dense thickets that crowd and shade out native shrubs and herbaceous species. Severe infestations may limit the regeneration of native tree seedlings.
Mechanical - small plants can be removed with a shovel or weed wrench. The entire root system must be removed to prevent resprouting. Remove plants before fruit production to minimize additional spread.
Chemical - selective herbicide applications can be used to control larger individuals or infestations. Glyphosate can be applied as a foliar spray or cut stem application. For best results, treatments should be performed during periods of active growth and full leaf expansion. Triclopyr based products can be used as a basal bark spray. Always consult and follow the herbicide product label.