These are the first blooms of the year for me. This plant is an OP seedling of R. sericea. It was sent to me by David Zlesak. The blooms are about an inch and a half across. I just got it from him last year and it was a large plant already. It was too late for it to bloom then so this is the first time I've seen them. It's new basals have the bright red winged thorns of the parent but not as large. I will probably freeze some of its pollen to use later.
I love the pimpinellifoliae class. They are the harbingers of rose season.