Commercially available

• Duchess of Portland
• Duchesse de Portland
• Paestana
• Portland Monthly Crimson Rose
• Portland Rose
• Portlandica
• Rosa damascena portlandica bifera
• Rosa menstrua portlandica
• Rosa 'Paestana'
• Rosa portlandia
• R. portlandica
• Rosa portlandica Roess.
• Rosa X paestana 'Duchesse de Portland'
• Rosier de Portland
• Scarlet Four Seasons' Rose
• The Portland Rose

139 favorite votes.  
Average rating: EXCELLENT-.  

Medium red Portland.
Exhibition name: Duchess of Portland

Bred by Unknown (before 1775).

Damask Perpetual, Portland.  

Red.  Mild to strong, damask fragrance.  10 to 15 petals.  Average diameter 3.25".  Medium to large, semi-double (9-16 petals), borne mostly solitary, cluster-flowered bloom form.  Spring or summer flush with scattered later bloom.  Leafy sepals buds.  

Armed with thorns / prickles.  5 to 7 leaflets.  
Height of 2' to 47" (60 to 120 cm).  Width of 2' to 3' (60 to 90 cm).

USDA zone 4b through 9b.  

Mike Lowe says Duchess of Portland is a Damask Perpetual and assigns it a date of 1782...
Parentage uncertain, see References for more information. The speculation that 'Slater's Crimson China' was one of the parents was disproved by DNA Analysis at the Claude Bernard University in Lyon, France.
Sangerhausen describe the color of the bloom of The Portland Rose as light red.