Book  (2002)  Page(s) 78, 81.  Includes photo(s).
 
'Higurashi', Sunset (Evening twilight), dark red-violet bright bloom; vigorous, tall

Book  (Jan 2000)  Page(s) 228.  
 
Higurashi Tree Peony. ex Japan pre-1929. A single red suffruticosa...

Book  (1999)  Page(s) 138.  
 
Paeonia suffruticosa 'Higurashi', cv., 1972

Book  (1990)  
 
Reddish purple flowers.... Higurashi Medium size. Sheath white and globular. Midseason. Narrow leaflets. Tall and vigorous.

Article (magazine)  (Jan 1955)  Page(s) 57.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, Rose Red, 'Higurashi' (Twilight) (Jap. bef. 1929), [Gardens] Scott Foundation, Whitnal Park Botanical Gardens, University of Washington Arboretum

Website/Catalog  
 
Higurashi Pivoine simple à semi-double. Entre rouge clair et rose foncé à reflets plus sombres. Coloris lumineux et éclatant. Feuillage souple vert clair à légers reflets pourprés.

Single to semi-double peony. Between light red and dark red with darker highlights. Luminous and bright colouring. Soft, light green foliage with purplish highlights.
> 1.5 m, 21 cm, upright, no fragrance, blooms 20-25 April