Book (1997) Page(s) 176.
Indigo Portland. Laffay (France) c. 1830. Description and cultivation... flowers: deep purple with an occasional thin white stripe on some of the petals...
Book (1993) Page(s) 80.
Portland. Description. Flowers: dark purple, large. Circa 1830.
Book (1936) Page(s) 360.
Indigo (HP) Laffay ca. 1830; bright garnet-purple, occasionally shaded carmine-pink, large, double, flat. = Pérpetuelle indica.
Book (1899) Page(s) 82.
Indigo, HR, Laffay, grenat foncé
Book (1899) Page(s) 142.
Pérpetuelle indigo, HR, grenat vif, syn. Indigo
Book (1880) Page(s) Annex, p. 63.
hybrid perpetual, Indigo (Laffay), dark purple, someimes shaded pink-carmine, large, double, flat, very conspicious.
Book (1858) Page(s) 168.
Rosa damascena bifera. Indigo, (Laffay), large, double, dark purple, generally slaty, flat.
Book (1858) Page(s) 193.
Hybrid perpetual Perpetuelle Indigo, (Laffay), velvety dark violet.
Book (1848) Page(s) Vol II, p. 111.
Damask Perpetuals. Indigo; flowers dark purple, occasionaly tinted with rosy crimson, large and double; form, expanded. Very distinct. Raised by M. Laffay of Bellevue.
Book (1846) Page(s) 111.
Damask Perpetual. Indigo is a superb rose, of a dark rich violet hue, a new and desirable French variety.