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'Rosa acicularis subsp. sayi' rose Description
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'<i>Rosa acicularis</i> subsp. <i>sayi</i> (Schwein) W.H.Lewis' rose photo
Photo courtesy of Rosewild
HMF Ratings:
19 favorite votes.  
ARS:
Deep pink Species.
Class:
Species / Wild.  
Bloom:
Deep pink.  Large, single (4-8 petals), borne mostly solitary bloom form.  Once-blooming spring or summer.  
Habit:
Short, armed with thorns / prickles, suckers on its own roots, upright.  Medium, matte, dark green foliage.  5 to 7 leaflets.  

Height: 8'2" to 9'10" (250 to 300cm).  
Growing:
USDA zone 2b through 9b.  Very hardy.  vigorous.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Hexaploid
Parentage:
If you know the parentage of this rose, or other details, please contact us.
Notes:
R. acicularis subsp. sayi. occurs in the boreal forests of North America, while R. acicularis subsp.acicularis is Eurasian but extends into Alaska. See nice herbarium specimens from Saskatchewan in Colin's Virtual Herbarium. A semi-double form of R. acicularis subsp. sayi with 16 petals was described in Moose Range, Saskatchewan. See References.

Rosa acicularis Lindl. var. engelmannii Crép. is a synonym of R. acicularis subsp. sayi. See References.

See Rosa engelmannii for another name for the same rose. European references report that it is a natural hybrid of two species.
 
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