Newsletter  (Jul 2012)  Page(s) 10.  
 
Tsukushi-ibara, because of its beauty and signifi cance in Japan, was chosen as the symbol for the 12th International Heritage Rose Conference and when we saw it for the fi rst time in its natural environment, we could certainly see why. Stretching before us for miles along the Kumagawa (River Kuma) was a mass of pink arching shrubs appearing out of the natural vegetation. There were large arching shrubs, small dense thickets of plants and colourful branches making their way up trees. The tiny healthy plants near the walkways was confi rmation that Tsukushi-ibara was here to stay....
Rosa multiflora adenochaeta differs from the Multiflora plants I have growing in my garden in a few ways. It has some prickles, not many, on the older branches. It also has burgundy glandular hair on its pedicels which looks very attractive. It produces its blooms in huge panicles, the individual flowers being larger than what I’m used to and the stamens being prominent and bright yellow. Most of the bushes had blooms that were mid pink with white centres, but there was the occasional white bush as well as flowers that were almost cerise all making for a very attractive display.

Article (newsletter)  (Jul 2012)  Page(s) 44-45.  
 
R. multiflora var. adenochaeta (Fig.1. f. clear, refreshing, sweet fragrance) ....
....farnesol (8.3%), 2-phenylethanol (72.7%) and 2- phenyethyl acetate (2.4%) in R. multiflora var. adenochaeta .....
The main component of the fragrances of the following three roses: R. multiflora, R. multiflora var. adenochaeta, and R. onoei, was 2-phenylethanol, which we consider is responsible for their sweet fragrances. We classified these roses into one “Multiflora-like group”. Our analysis had revealed that eugenol is contained in the fragrance of R. multiflora. .....no eugenol had been detected among the fragrance components of R. multiflora var. adenochaeta.

Website/Catalog  (2006)  
 
Tsukushi-Ibara (Briar from Tsukushi, Kyushu)
R. multiflora Thunb. var. adenochaeta (Koidz.) Ohwi ex H. Ohba
Flora of Japan: 171 (2001)
Distribution: Honshu (western parts of the Chugoku district) and Kyushu
Though this rose is generally considered to be a variety of R. multiflora, the author suspects that it could be a hybrid between R. multiflora and some other roses. Its flowers make a big panicle like R. multiflora, but their colour is varying shades of pink, and the whole bush, spreading its canes very vigorously, is larger than R. multiflora. It also differs from R. multiflora in that it has glandular hairs on its peduncles, calyx tubes, and the outer surface of its sepals. Sometimes this rose is confused with a wild variety in SW China, R. multiflora var. cathayensis Rehder et Wilson, but flowers of var. cathayensis make small corymbs, and have no glandular hairs like var. adenochaeta. The large colony of R. multiflora var. adenochaeta on the banks of the Kuma River in Kumamoto Prefecture, Kyushu, is widely known for its breathtaking appearance when the roses are fully in bloom. This variety is also used as an understock rose in Japan.

Book  (2006)  Page(s) 110, 109 (photo).  Includes photo(s).
 
Tsukushi-Ibara (Briar from Tsukushi, Kyushu)
Same text as on website
 

Article (website)  (16 Feb 2005)  
 
R. adenochaeta (Japon) sport remontant de Lens

C'est au milieu d'un ensemble de plusieurs centaines de jeunes plants issus de boutures d'une même plante mère qu'apparurent quelques exemplaires à la tendance remontante prononcée. En dehors de cela, pas de différences par rapport à la forme sauvage, qui elle ne l'est pas (d'après les infos reçues de Yuki Mikanagi). Louis utilisa intensivement le pollen de ce sport particulier de cette très belle espèce pour féconder ses hybrides de moschata en cours de développement. L'idée de mêler les gènes de cette remontance particulière avec ceux d'autres variétés déjà bien remontantes était intelligente et elle mena à de très bons résultats.

Article (magazine)  (2001)  Page(s) 393.  
 
R. multifora var. adenochaeta (Koidz.) Makino Ploidy 2x
Pollen fertility 97.3%
Selfed Fruit set 0%

Article (magazine)  (2000)  
 
Another Japanese variety R. multiflora var. adenochaeta was separated from its mother species (R. multiflora). R. multiflora var. adenochaeta has a limited distribution in Kyushu regions of Japan and it has many pink-white flowers clustered in a panicle. In particular, its pedicels and calyx tube are prominently covered with red stipitate glands which is quite different from its mother species. We suppose that R. multiflora var. adenochaeta should be treated as one separate species and be restored to the original name as R. adenochaeta Koidz. Analysis with ITS+matK sequence data also supports our results.

Article (newsletter)  (May 1998)  Page(s) 3-4.  Includes photo(s).
 
R. multiflora var. adenochaeta ('Tsukushi-ibara')... this variety of R. multiflora grows in the southern part of Kyushu Island... description...

Book  (1965)  Page(s) 540.  
 
Rosa multiflora ....Var. adenochaeta (Koidz.) Ohwi. R. adenochaeta Koidz.; R. polyantha var. adenochaeta (Koidz.) Nakai - Tsukushi-ibara. Leaflets large, 3-7 cm. long, subcoriaceous, less prominently pubescent beneath; inflorescence with prominent stipitate glands 1-2 mm. long; flowers rose, 3-4 cm. across. - Kyushu (Higo, Satsuma, and Hyuga Prov.).