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17 favorite votes.  

Medium pink Polyantha.
Registration name: Pinkie
Exhibition name: Pinkie

Bred by Herbert C. Swim (United States, before 1947).
Introduced in United States by Armstrong Nursery in 1947 as 'Pinkie'.
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in 1949 as 'Pinkie'.

Polyantha.  

Pink.  Flowers neyron rose.  Mild fragrance.  14 to 16 petals.  Average diameter 2.25".  Medium, semi-double (9-16 petals), in large clusters, cupped bloom form.  Blooms in flushes throughout the season.  

Short, bushy.  Glossy foliage.  7 leaflets.  

Height: 1' (30cm).  

USDA zone 6b through 9b (default).  

United States - Patent No: PP 712  on  8 Oct 1946   VIEW USPTO PATENT

Triploid

Although Modern Roses X and Modern Roses 12 report different parentages for 'Pinkie', Herb Swim states that this rose was created by open pollenation with 'China Doll' in his book Roses - From Dreams To Reality. See REFERENCES The patent states the same thing, "open pollenation of China Doll".