Book  (Nov 1993)  Page(s) 24.  
 
Thought by some to have been the 'White Rose of York'.

Book  (Apr 1993)  Page(s) 6.  
 
Alba Semi-plena Alba, white, (R. alba semiplena); Prior to 1867; A very old form that has been observed as a sport from Alba Maxima. Description.

Book  (Feb 1993)  Page(s) 60.  Includes photo(s).
 
Semi-Plena Alba. Parentage: unknown. (aka R. x alba suaveolens, R. x alba nivea, 'White Rose of York'). Europe, 16th century or earlier. Description and cultivation... flowers: pure white and semi-double with golden stamens... orange-red autumn fruit...

Book  (1993)  Page(s) 47.  Includes photo(s).

Book  (May 1992)  Page(s) 1.  Includes photo(s).

Book  (1992)  Page(s) 11.  
 
(R. x alba Semi-plena, 'White Rose of York') Alba shrub; white, blooms of medium size, semi-double; not remontant; growth bushy, wide 7 x 5 ft (2.2 x 1.5 m); leaf greyish green; good scent. Before 1600. OGR

Book  (1991)  Page(s) 18.  
 
The White Rose of York, R. 'Alba Semi-plena'... believed to be a hybrid between R. gallica and a white form of R. canina, the Dog Brier...

Book  (1988)  Page(s) 10.  
 
R. x alba 'Semi-plena' semi-double with golden stamens... taken by Edward IV (1461-70) as his personal badge and thus became the White Rose of York.

Book  (1988)  Page(s) 41.  Includes photo(s).
 
One of the oldest varieties of R. x alba and said to be grown still in quantity in Bulgaria, around Kazanluk [sic], north of Plovdiv, for attar. It makes a large bush, up to 2 m high, with arching branches well covered with scented flowers. This is one of the toughest roses and is tolerant of anything except shade.

Book  (1987)  Page(s) 32.  
 
Redoute painted it at Malmaison.