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"Irène Watts rose References
Magazine  (2019)  Page(s) 51. Vol 41, No. 1.  
Margaret Furness.  Tea, Noisette and China Mislabels in Australia.
Poly-Teas and Chinas.
Roses sold here as Irène Watts are usually Grüss an Aachen or Pink Grüss an Aachen.
Website/Catalog  (13 Jul 2012)  
'Pink Gruss an Aachen' (Fl?; Kluis – 1929). A light warm pink sport of the classic ‘Gruss an Aachen’, it resembles its parent in growth habit, stem and foliage, but the blooms are more full with more ‘spiky’, less reflexed petals. 1.2m x 1m.
Article (magazine)  (2007)  Page(s) 404.  
Table 1. Comparison of key volatile components in representative cultivated Chinese roses and species. [adsorption volume by Solid Phase Microextraction (peak area, x10')]
DMMB: 1,3-dimethoxy-5-methylbenzene
TMB: 1,3,5-trimehoxybenzene

'Irene Watts' [the rose in commerce under this name is 'Pink Gruss an Aachen']
Nerol 8.92
Beta-phenylethyl alcohol 0.46
Dihydro-beta-ionone 3.55
Beta-ionone 0.29
DMMB 14.5
Book  (Nov 1993)  Page(s) 58.  Includes photo(s).
Book  (Apr 1993)  Page(s) 452.  
Pink Gruss an Aachen Floribunda, light salmon-pink, 1929, 'Gruss an Aachen' sport; Kluis.
Website/Catalog  (1985)  Page(s) 25.  

Irene Watts* (China) Double, white tinted pale pink. Fairly dwarf and hardy. 1896. (C) 2 x 2’.

Book  (1947)  Page(s) 218.  
Pink Gruss an Aachen (H.T.) is a rose with polyantha blood, producing small clusters of clear salmon-pink double flowers on plants of dwarf but vigorosu and erect habit, with rich green foliage. Kluis 1930...Moderate growth. Slightly fragrant...June-September. Hardy.
Book  (1936)  Page(s) 1.  
Aachen, Pink Gruss an (polyantha) Kluis & Koning 1929; sport, salmon-pink, very double
Book  (1932)  Page(s) 221, Vol 17.  
Pink Gruss an Aachen D. Poly. (Kluis & Koning, 1929.) Sport of Gruss an Aachen with much fuller salmon-pink flowers. First Class Certificate.
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