Hybrid lactiflora.  Light pink, yellow center, ages to white .  Semi-double, cupped bloom form.  Early-to-mid.  USDA zone 2a and warmer.   Myron D. Bigger (1949).

4 favorite votes.  

Hybrid lactiflora.  White.  Faint red markings on reverse.  Moderate fragrance.  Large, double bloom form.  USDA zone 2a and warmer.  Height of up to 35" (up to 90 cm).   Christian Olson (1959).

4 favorite votes.  

Hybrid lactiflora.  Red, yellow center.  Japanese (anemone, imperial) bloom form.  Mid-to-late.  Height of up to 32" (up to 80 cm).   Unknown breeder.

4 favorite votes.  

Hybrid lactiflora.   Donahue (1927).

4 favorite votes.  

Hybrid / Species crosses.  Red, yellow center.  Single bloom form.  Very early.  USDA zone 2a and warmer.  Height of up to 33" (up to 85 cm).   Edward Auten, Jr. (1941).

4 favorite votes.  

Hybrid suffruticosa.  Carmine-red.  Dark purple disk.  Single bloom form.   Philipp Von Siebold (1844).

4 favorite votes.  

Hybrid lactiflora.  Deep pink.  Very large, double bloom form.  Late midseason.   Eugene H. Lins (1945).

4 favorite votes.  

Tree peony.  Crimson, pink blending, light pink blending.  Very large, double, ruffled bloom form.  USDA zone 2a and warmer.   Goethals (1823).

4 favorite votes.  

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

4 favorite votes.  

Hybrid lactiflora.  Red.  Staminoids tipped yellow.  Very large, double, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 35" (up to 90 cm).   Grant B. Babcock (1929).

4 favorite votes.  

Hybrid / Species crosses.  Rose-pink, lighter flares.  Single to semi-double bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 35" (up to 90 cm).   Prof. Arthur Percy Saunders (1934).

4 favorite votes.  

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

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 / Species crosses.  Peach to buff.  Moderate fragrance.  Single, ruffled bloom form.  Early.  USDA zone 2a and warmer.  Height of 33" to 40" (85 to 100 cm).   Hubert A. Fischer (1969).

4 favorite votes.  

Hybrid lactiflora.  White.  Double bloom form.  USDA zone 2a and warmer.   Archie M. Brand (1933).

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  Rose-pink, lilac shading, purple flares.  Mild, rose fragrance.  Very large, semi-double to double bloom form.  Height of up to 8' (up to 245 cm).  Width of up to 10' (up to 305 cm). Unknown Chinese Breeder(s) (1789).

4 favorite votes.  

Hybrid / Species crosses.  Light pink, ages to lighter .  Large, semi-double bloom form.  Early-to-early mid.  Height of up to 40" (up to 100 cm).   William J. Seidl (2005).

4 favorite votes.  

Hybrid lactiflora.  Deep pink.  Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.   Robert William Tischler (1972).

4 favorite votes.  

Hybrid lactiflora.  White.  Mild to strong, rose fragrance.  Full bloom form.  Early.   Edward Auten, Jr. (1933).

4 favorite votes.  

Hybrid suffruticosa.  

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  White.  Golden anthers.  Very large, semi-double to double bloom form.  Early.  USDA zone 2a and warmer.  
Height: 39" to 4'11" (100 to 150cm).   Unknown Japanese Breeder(s) (1889).

4 favorite votes.  

Hybrid / Species crosses.  Brilliant red.  Stamens visible.  Medium, semi-double to double, rose bloom form.  Early.  USDA zone 2a and warmer.  
Height: up to 19" (up to 50cm).   Edward Auten, Jr. (1936).

4 favorite votes.  

Hybrid suffruticosa.  Carmine-pink, purple undertones.  Some green petals.  Strong fragrance.  Medium, crown bloom form.  Late.  USDA zone 2a and warmer.  Height of up to 4' (up to 120 cm).   Unknown Chinese Breeder(s).

4 favorite votes.