'R. berberifolia' rose References
Book (May 1998) Page(s) 8, 9. Includes photo(s).
Page 8: Rosa berberifolia ('Barberry-Leaved Rose') Description... corolla of 5 canary-yellow petals, each with a basal purplish spot... This rose, distinguished from all others by the simple leaves, has been brought back from Persia, where it is very common, by Michaux Sr. and Olivier. The latter sent it to Cels Sr. who flowered it for the first time in Paris...
Page 9: [Illustration]
Article (magazine) (Apr 1998) Page(s) 19.
Hulthemia persica a natural cross-genus hybrid with a rose... From this, Jack Harkness produced 'Tigris'... H. persica and 'Tigris' are very difficult to breed and propagate and are not of commercial importance -- except n the breeding program of Chris Warner.
The rose H. persica has one big thing going for it, namely, an absolutely unique coloration of bloom with immense potential. It has several things going against it, including a once-a-year blooming habit, failure to bloom on new wood, and an inability to be propagated in any way other than by seed (which precludes most commercial production). All of these qualities can be bred out, but it takes thousands, or perhaps millions, of hybrid crosses through many generations to reach something of commercial merit...
Book (1996) Page(s) 52.
Rosa persica grows in southwest Asia with stems and leaves unlike those of any other rose, and a distinctive scarlet eye at the base of its canary yellow petals...
Book (Apr 1993) Page(s) 253.
HULTHEMIA... The one species is distinguished from Rosa by the simple leaves without stipules and small, solitary flowers with a dark eye...
H. persica (Michaux) Bornmueller (Rosa persica Michaux; Rosa berberifolia Pallas; Rosa simplicifolia Salisbury; Hulthemia berberifolia (Pallas) Dumortier; Lowea berberifolia (Pallas) Lindley). Introduced 1790... Flowers buttercup-yellow with a scarlet eye [yb]...
Book (1993) Page(s) 64. Includes photo(s).
[Listed under "Wild Roses and Their Cultivars"] (Hulthemia persica) A semi-desert plant. Flowers: bright yellow with a large red eye.
Book (1988) Page(s) 11, 26.
p. 11: R. persica is unique in having bright yellow petals with a rich splash of scarlet at the base. For years people questioned if it was a rose at all, noting the flowers, the curious grey-green leaves, which are unlike those of any other rose, and the gooseberry-like springy stems armed with narrow spines.
p. 26: Used by Cocker and Harkness in their breeding programs in the 1960s.
Book (1988) Page(s) 19. Includes photo(s).
Book (1985) Page(s) 156-157.
[R. persica is the only wild rose] which has a deep red eye at the centre of its yellow flowers... it is difficult to grow and to mate with other roses. The botanists eventually took it out of the genus Rosa altogether, and renamed it Hulthemia persica. Only one hybrid between R. persica and another rose had ever been known. It was raised in the Luxembourg Gardens in 1836, and was called 'Hardii'. It also has yellow flowers, paler but larger than those of R. persica, and it exhibits a fine red eye... [Alec] eventually got seed of [R. persica] by means of a botanist who was travelling to Persia, its chief native habitat... he shared the seed with [Jack Harkness who] did a lot of interesting work with it, raising the first recorded hybrids from it since 1836.
Book (1981) Page(s) 247. Includes photo(s).
Rosa persica. Genus Rosa is subdivided by some taxonomists into four subgenera: Eurosa, Hulthemia, Platyrhodon and Hesperhodos. Almost all species are within the subgenus Eurosa. Subgenus Hulthemia contains only one species: Rosa persica.
Leaves are entire, not pinnate [ meaning Rosa perisca does not have leaflets. ]Shrub grows only 18 inches high. Flowers singly, not in clusters. Native to Iran and Afghanistan, near Caspian and Aral Seas. Easy to grow from seed, hard to keep alive in cultivation.
Book (1981) Page(s) 124.
R. persica Michx. ex Juss.
A thin, straggling bush, 2 or 3 ft. high, with slender, wiry, downy stems furnished with hooked spines....Leaves glaucous, simple (consisting of one leaflet)....Flowers about 1 in. across...Fruits globose....very prickly, crowned by the persisting sepals.
Native of Iran, Afghanistan and of Russia (Central Asia and the steppe region of S.W. Siberia), often found on saline soils....
With regard to the cultivation...Lindley wrote: 'Drought does not suit it, it does not thrive in wet, heat has no beneficial effect, cold no prejudicial influence, care does not improve it, neglect does not injure it.'....it is a fact that this species has not survived in the open for more than a few years in our climate.