[Rosa cathayensis (Rehder & E.H.Wilson) L.H.Bailey, more]
Etymology: Rosa: ancient Latin name whose meaning has been lost
Plants: arching, perennial, 5'-12' tall shrub forming dense clones, very prickly with curved thorns; stems bright green to reddish
Leaves: pinnately-divided with 5-11 elliptical, toothed, leaflets to 1" long
Flowers: white, 5-parted, 1/2"-1 1/4" wide, sepals becoming deciduous; inflorescence of many stalked flowers in large, branched clusters (panicle
Fruits: red, smooth, berry-like hips
Habitat: sun to partial shade; pastures, woods
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Introduced - escaped; ecologically invasive and nuisance weed
Floristic Rating: Wetland Indicator = FACU WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods Invasive And Exotic Species of North America: Descriptions, management issues, warnings, photos, etc. 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 USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Virginia Tech Dept. of Forestry, College of Natural Resources: detailed description and photographs Weeds Gone Wild: Alien Plant Invaders of Natural Areas: Descriptions, photos, management help, etc.