Book  (Jan 2000)  Page(s) 228.  
 
Hatsu Garashu. See 'Hatsugarashu'.
Hatsugarashu Tree Peony. ex Japan pre-1929... red

Article (website)  (1998)  Page(s) 3.  Includes photo(s).
 
'Hatsugarasu' by Nagao Jiro

Website/Catalog  (1956)  Page(s) [1].  
 
Japanese Tree Peonies
Hatsu Garashu (First Crow of the year) Large semi-double crimson...$7.00

Article (magazine)  (Jan 1955)  Page(s) 20.  
 
In crimson to maroon, (Class V) , 'Koi-kagura,' 'Kasane-jishi.' and 'Konron-koku,' 'Hatsu-garashu,' 'Sumi-noichi,' and 'Kokko'.

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, Yellow with reddish tones, 'Hatsu-garashu' (First Crow of the Year) (Jap. bef. 1929), [Gardens] Whitnal Park Botanical Gardens, University of Washington Arboretum, Scott Foundation, [Nurseries] William Gratwick