Hybrid lactiflora.  Cream to buff, crimson streaks, stripes, flecks, ages to butter-yellow .  Mild, medicinal fragrance.  Very large, double, cupped, flat bloom form.  Late.  USDA zone 2a and warmer.   Victor Lemoine (1906).

4 favorite votes.  

Hybrid lactiflora.  White, red streaks.  Double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 2' to 35" (60 to 90 cm).   J.R. Mann (1936), Julius J. Van Steen (1936).

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  Pink.  Mild fragrance.  Semi-double bloom form.  Late.  USDA zone 2a and warmer.  

4 favorite votes.  

Hybrid lactiflora.  Lilac - pink.   François-Félix Crousse (1840-1925) (1892).

4 favorite votes.  

Hybrid / Species crosses.  Scarlet.  Double bloom form.  Early-to-mid.  USDA zone 2a and warmer.   Edward Auten, Jr. (1965).

4 favorite votes.  

Hybrid lactiflora.  Light pink, cream undertones, ages to white .  Strong, medicinal fragrance.  Large, single to semi-double, cupped, lotus bloom form.  Prolific, midseason.  
Height: up to 35" (up to 90cm).   Philippe-Victor Verdier (1892).

4 favorite votes.  

Hybrid / Species crosses.  White.  Moderate fragrance.  Single bloom form.  Height of up to 20" (up to 50 cm).   Eivind Hansen (2009).

4 favorite votes.  

Hybrid rockii.  Lilac, purple flares.  Moderate fragrance.  Semi-double bloom form.   Chen Dezhong (2002).

4 favorite votes.  

Hybrid lactiflora.  Crimson.  Medium bloom form.  Early.   John F. Rosenfield or Rosefield (1916).

4 favorite votes.  

Hybrid lactiflora.   John F. Rosenfield or Rosefield (1934).

4 favorite votes.  

Hybrid lactiflora.  Deep pink.  Light red.  Large, single bloom form.  Height of up to 3' (up to 90 cm).   William Henry Krekler (1978).

4 favorite votes.  

Hybrid lactiflora.  Light pink, lavender shading.  None to mild fragrance.  Medium to large, double bloom form.  Late.  Height of up to 28" (up to 70 cm).   Roy G. Klehm (1995).

4 favorite votes.  

Hybrid / Species crosses.  Vermilion.  Large, semi-double bloom form.  Mid-to-late.  Height of up to 35" (up to 90 cm).   Prof. Arthur Percy Saunders (1938).

4 favorite votes.  

Hybrid lactiflora.   Francis H. Allison (1931), Egbert Jerome Shaylor (1931).

4 favorite votes.  

Intersectional Hybrid / Itoh.  Yellow, red flares.  Large, double bloom form.  Midseason.   Toichi Itoh (1954).

4 favorite votes.  

Hybrid lactiflora.  Light pink.  Moderate fragrance.  Medium, semi-double, cupped bloom form.  Midseason.  Height of up to 2' (up to 60 cm).   Roy G. Klehm (1979).

4 favorite votes.  

Hybrid lactiflora.   Archie M. Brand (1936).

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  Coral-pink, light pink edges, dark purple flares.  Mild fragrance.  Medium, very double, crown bloom form.  Midseason.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s) (1970).

4 favorite votes.  

Intersectional Hybrid / Itoh.  Yellow, red flares.  Moderate fragrance.  Semi-double bloom form.  Early-to-mid.  Height of up to 32" (up to 80 cm).   Unknown Japanese Breeder(s) (1980).

4 favorite votes.  

Hybrid lactiflora.   Edward Auten, Jr. (1938).

4 favorite votes.  

Hybrid lactiflora.  Crimson.  Double bloom form.   Peter Barr.

4 favorite votes.  

Hybrid lactiflora.  Deep pink, yellow center.  Small, Japanese (anemone, imperial) bloom form.  Midseason.   Grant B. Babcock (1929).

4 favorite votes.  

Hybrid lactiflora.   Hans Peter Sass (1932).

4 favorite votes.  

Hybrid lactiflora.  White.  Moderate, sweet fragrance.  Medium, double, crown bloom form.  Late.  Height of up to 30" (up to 75 cm).   Unknown breeder.

4 favorite votes.