Book  (Nov 1994)  Page(s) 216.  
 
Rosa multiflora
"It is often seen in gardens without the owner having any idea of its identify, except that they know it is an understock....The forms known as Rosa multiflora japonica (prickly) and R. m. 'Simplex' (prickle-less) are those used most often as understocks for budding, and differ but little from a horticultural point of view; either will make a charming plant, but both are rather small-flowred. Another understock, 'Cress and Danieli' is undoubtedly the best of all forms to grow form its beauty. The flowers, trusses, and foliage are all of a high order. It was raised in the United States."

Book  (1986)  Page(s) 179.  
 
Understocks... multiflora... 'Japonica'

Book  (Jul 1938)  Page(s) 87.  
 
R. multiflora japonica - (Multiflora means many-flowered; japonica means Japanese). Commonly used as a rootstock for garden roses.

Book  (1936)  Page(s) 133.  
 
R. Marion Hatton.  Understocks in America
Most of the Roses grown in the United States for garden use are budded on either Multiflora Japonica or Ragged Robin (Gloire des Rosomanes) understocks... although both cuttings and seedlings of Multiflora are used... these plants are distributed by the hundreds of thousands throughout the other forty-seven States... The finest eastern Roses are grown on Multiflora seedlings, while in the great Rose-growing sections of Oregon, Washington, Texas, and in some few eastern nurseries Multiflora cuttings are used. Most of the eastern-grown Roses are consumed in the eastern and central States, while those from Oregon, Washington and Texas, like those from California, are shipped all over the country, millions of the poorer grades being distributed through the department and chain stores... Ragged Robin produces a good plant, heavier than Multiflora...Multiflora, on the other hand, with its wiry, fibrous root system, seems to thrive in most any soil; the roots are so numerous and searching that it is easy to feed.  Probably we will find the greatest diversity of opinion between the advocates of seedling or cutting Multiflora.  Theoretically, a properly made cutting is so de-eyed that it will not sucker, but in practice this is not true, and too many eyes are left between the bud and root to send up their troublesome shoots... Roses low budded on seedling Multifloras never sucker; their roots go deeper than those of a cutting, and, I believe, are longer lived.

Book  (1926)  Page(s) ii.  
 
[From an advertisement for A.N. Pierson, Inc., which claims that because their plants were] grafted on seedling Rosa multiflora japonica (because of its wondrous fibrous root system) a vigorous, healthy root growth is promoted... Practically all bush roses produce more blooms when grown on R. multiflora japonica stock...

Website/Catalog  (1849)  Page(s) 53.  
 
Rosai Sarmentosi e Rampicanti. Multiflora japonica p (piccolo) doppio, roseo tenero … da fr. 1 a fr. 1 50

Website/Catalog  (1839)  Page(s) 22.  
 
Rosa multiflora japonica....1 new Piemont lira, a dozen for 9 new Piemont lire