|Climbing Prairie Rose, Rosa setigera. - REK|
|Rosa setigera - REK|
|Multiflora rose - USDA Plant Database|
Stipule is a term coined by Linnaeus to describe outgrowths on the side of the petiole (leaf stalk). In most native roses these are winged as seen in the pink and green stipules at the top of the page. The invasive Rosa Multiflora that we spend so much effort killing is the only Missouri rose that has a fringe of stipules around the base of the petiole.
|Winged stipule - click to enlarge|
While acting as Barb's Sherpa by carrying a sprayer of Remedy and following her pointer to "spray that," I had a chance to photograph a few prairie highlights that are posted in this Flickr album.
Iowaplants.com has a good description of roses' features and provided the bottom three photographs.