Very loing stems and single bloom per stem are the trademarks of Dallas Rose, form cut flower variety which has since been replaced by newer varieties.
Photo ID: Dallas-rosebud
excitations
Photo size: 24.2 Mpixels (69.1 MB uncompressed) - 4016x6016 pixels (13.4x20.1 in / 34x50.9 cm at 300 ppi)