Book  (Apr 1993)  Page(s) 73.  
 
Cantab Hybrid Nutkana, deep pink, base white, stamens yellow, single, 1927, R. nutkana x 'Red-Letter Day'; Hurst. Description.

Book  (1981)  Page(s) 277.  
 
Rosa nutkana has only rarely been used in hybridizing; the best known hybrid is 'Cantab' (Hurst 1927) = R. nutkana x 'Red-Letter Day'; shrub 1.5-2 m./5-6.6 ft. high; foliage dark green; flowers solitary, dark rose with white center, 8 cm./3.2 in. across, saucer-shaped, anthers yellow, non-recurrent.

Book  (1976)  Page(s) 118.  
 
'Cantab' (Hurst, 1927) = R. nutkana X 'Red Letter Day' (Hybrid Tea). Bushes 1,5 to 2 m tall; blooms single, to 8 cm in diameter, cupped, deep pink with white center; once-blooming in summer.

Article (misc)  (1954)  Page(s) 54.  
 
Cantab 35 chromosomes.