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'R. setigera' rose Photos
 
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R. setigera rose photo
Rose photo courtesy of scvirginia
photo from the 1913 catalog, Biltmore Nursery Roses, Asheville, North Carolina; scan courtesy of Biodiversity Heritage Library
Uploaded 26 DEC 21
R. setigera rose photo
Rose photo courtesy of MiGreenThumb
Brilliant autumn foliage capable of rivalling the most fiery of maples. Lovely glistening hips. October 2020.
Uploaded 12 MAY 21
R. setigera rose photo
Rose photo courtesy of Rosewild
The "Bristly Rose" showing "setigerous" (stalked) glands on the sepals, hips and pedicel for which Rosa setigera was named by the French botanist André Michaux. My plant was collected in Sumner County, Tennessee in 1986. Photographed June 29, 2021 at Rose Woods in the Mayacmas Mtns. near Petrified Forest, California.
Uploaded 8 JUL 21
R. setigera rose photo
Rose photo courtesy of MiGreenThumb
Distinctive, rough textured leaflets often with only three. June 2015
Uploaded 12 MAY 21
R. setigera rose photo
Rose photo courtesy of Rosewild
All roses have what are called “perfect flowers” meaning each blossom has both male and female parts. But setigera is the only rose in the whole world known to be dioecious. That means it has separate male and female plants.
Uploaded 8 JUL 21
R. setigera rose photo
Rose photo courtesy of MiGreenThumb
June 24, 2015. The wild plant I collected seeds from. Despite a lack of scent to my nose, bees seem to love this.
Uploaded 12 MAY 21
R. setigera rose photo
Rose photo courtesy of Rosewild
If a bush of setigera produces hips, it is a female plant. Blooming setigera plants not producing hips are male. Most dioecious species have separate pollen and seed-producing flowers but setigera has an additional deception, called “cryptic”. The male and female flowers look exactly the same, both having anthers and pistils but the pollen of female flowers is sterile and the pistils on male flowers will not function.
Uploaded 8 JUL 21
R. setigera rose photo
V
Rose photo courtesy of MiGreenThumb
June 24, 2015. The wild plant I collected seeds from. Despite a lack of scent to my nose, bees seem to love this.
1 favorite vote.  
Uploaded 12 MAY 21
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