Etymology: Rhamnus: ancient Greek name for the buckthorn
Plants: erect, perennial, to 20' tall shrub
Leaves: top surface shiny, toothless edges
Fruits: blue-black berry
Hazardous: Careful, this plant is hazardous!
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Introduced - naturalized; ecologically invasive
- woody plants with simple leaves and small perfect white flowers
- leaves pinnately veined and entire
- bud scales pubescent
- flowers perfect, 5-merous;petals like hoods over the anthers
- styles united
- fruit berry (red then black) with 2-3 stones
Floristic Rating: Wetland Indicator = FAC+ WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Invasive Plants: Photos, descriptions, information University of Wisconsin - Green Bay: Shrubs: Photos, descriptions, information University of Wisconsin - Green Bay: Trees: Photos, descriptions, information USGS - Northern Prairie Wildlife Research Center: Wetland Plants and Plant Communities of Minnesota and Wisconsin USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Virginia Tech Dept. of Forestry, College of Natural Resources: detailed description and photographs Purple Sage - Ethnobotanical Information: Detailed usage, preparation, and other helpful information Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada" Landscape Plants of the Upper Midwest; UW-Extension: Note: INVASIVE. Interactive guide providing information on cultivation including: soil, zone, growth rate, landscape uses, pruning, light requirements; with photos and Latin name pronounciation