Intersectional Hybrid / Itoh.  Yellow, red streaks, stripes, flecks.  Single to semi-double bloom form.  Height of up to 38" (up to 95 cm).   Roger F. Anderson (2004).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Strong, rose fragrance.  Double, rose bloom form.  Very early.  USDA zone 2a and warmer.   Arthur L. Murawska (1951).

5 favorite votes.  

Hybrid lactiflora.  Crimson, lavender highlights.  Yellow stamens.  None to mild fragrance.  Very large, double bloom form.  Midseason.   Auguste Dessert (1915).

5 favorite votes.  

Hybrid Lutea, Tree peony.  Dark red.  Golden stamens.  Moderate fragrance.  Large, semi-double, ruffled bloom form.  Early-to-mid.  USDA zone 2a and warmer.  
Height: 3' to 4' (90 to 120cm).   Nassos Daphnis (1974).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Small, single bloom form.  Late.  USDA zone 2a and warmer.  Height of 32" (80 cm).   Millet & Son.

5 favorite votes.  

Hybrid lactiflora.  Light pink, ages to white .  Double bloom form.   Peter Barr (1909), H.A. Terry (1905).

5 favorite votes.  

Hybrid lactiflora.  Light pink.  Moderate fragrance.  Double bloom form.  Late.  USDA zone 2a and warmer.   Victor Lemoine & Sons (1925).

5 favorite votes.  

Hybrid Lutea, Tree peony.  Butter-yellow, red flares.  Semi-double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 32" to 43" (80 to 110 cm).   Prof. Arthur Percy Saunders (1949).

5 favorite votes.  

Tree peony.  Red.  Rose bloom form.  USDA zone 2a and warmer.  

5 favorite votes.  

Hybrid suffruticosa, Tree peony.  Red, purple shading, dark purple undertones.  Medium, semi-double to double, rose bloom form.  Midseason.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s) (1968).

5 favorite votes.  

Hybrid lactiflora.  Cream, yellow center.  Cluster-flowered.  None to mild fragrance.  Medium, semi-double, rose bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   François-Félix Crousse (1840-1925) (1888).

5 favorite votes.  

Hybrid suffruticosa.  White, mauve flares.  Cream bonnet.  Very large, double bloom form.  USDA zone 2a and warmer.   Robert Fortune.

5 favorite votes.  

Hybrid suffruticosa, Tree peony.  Pink, darker flares.  Single bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of up to 4' (up to 120 cm).   William H. Gratwick III (1980).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Moderate fragrance.  Large, semi-double, flat bloom form.  Midseason.  Height of 31" to 33" (80 to 85 cm).   Roy G. Klehm (1981).

5 favorite votes.  

Hybrid suffruticosa.   E. H. Krelage & Zoon (1867).

5 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow and mauve, rose-pink shading, deep pink flares.  Single bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Prof. Arthur Percy Saunders (1939).

5 favorite votes.  

Hybrid / Species crosses.  Cherry-red.  Semi-double bloom form.  Late.   Prof. Arthur Percy Saunders (1934).

5 favorite votes.  

Hybrid lactiflora.  Red, golden-yellow center.  Large, double bloom form.  Late.  USDA zone 2a and warmer.  Height of up to 43" (up to 110 cm).   Edward Auten, Jr. (1933).

5 favorite votes.  

Hybrid lactiflora.  Seashell-pink, deep pink undertones, silver(y) highlights.  Mild fragrance.  Large, double, rose bloom form.  Late.  USDA zone 2a and warmer.   Gilbert H. Wild & Son (1950).

5 favorite votes.  

Hybrid / Species crosses.  Dark red.  Large, full bloom form.  Early.   Edward Auten, Jr. (1962).

5 favorite votes.  

Hybrid lactiflora.  Deep pink, cream undertones.  Moderate fragrance.  Single bloom form.  Early-to-mid.  Height of 32" to 3' (80 to 90 cm).   William Henry Krekler (1980).

5 favorite votes.  

Hybrid lactiflora.   Kelway (and Son) (1929).

5 favorite votes.  

Hybrid Lutea, Tree peony.  Lavender - pink, dark red flecks.  Semi-double to double, ruffled bloom form.   David Reath (1985).

5 favorite votes.  

Intersectional Hybrid / Itoh.  Apricot - yellow, cream shading, red flares.  Semi-double to double bloom form.  Occasional repeat.  USDA zone 2a and warmer.  Height of up to 27" (up to 70 cm).  Width of up to 3' (up to 90 cm). Roger F. Anderson (1989).

4 favorite votes.