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'Rosa spinosissima L.' rose References
Website/Catalog  (1982)  
R. spinosissima L. 2n=28
Book  (1971)  Page(s) 352-353.  
R.myriacantha DC, ex Lam. et DC, Fl. Fr., ed. 3, IV (1805) 439; M.B., Fl. taur.-cauc. 111(1819)337; Crep. in Bull. Soc. Bot. Belg. XIX (1880) 225. — R. pimpinellifolia var. myriacantha Ser. in DC, Prodr. 11(1825)608; Ldb., Fl. Ross. 11(1844)74; Rgl. in A. H. P. V, f . II (1878)307; Crep., I.e. XXI (1882) 9, 10; Christ in Boiss., Fl. Or. Suppl. (1888) 206; Bouleng. in Bull. Jard. Bot. de Bruxelles XIII (1935) 174.
Shrub; prickles and pricklets as a rule very abundant, approximate, often very few (some specimens unarmed); leaflets 5—11, often 7, 10— 24 mm long, orbicular, twice as long as broad, glandular, at least along midrib beneath, teeth (rarely only partly) compound -glandular, 8—16 at each side; pedicels 10—30 mm long, smooth or more or less prickly and glandular, resembling the often hispid hypanthium; sepals 8—13 mm long, dorsally more or less glandular or acicular -glandular; corolla white, 30— 50 mm in diameter; fruit globose or slightly broader than long, 8—13 mm long. June-July.
European part: Crim. (mainly in the Yaila Mountains, but also found near Bakhchisarai); Caucasus: W., E. and S. Transc. Gen. distr.: Med. Described from S. France (vicinity of Montpellier). Type in Geneva.
Note . In the districts of Ai-Petri and Kokkoz, there are often encountered less typical forms, with glands confined to midrib and teeth only, partially bidentate (entire teeth prevail). Similar intermediate forms also grow in other localities; one of these, R.rupincola Fisch. ex Sweet, Hort, Brit. ed. II (1830) 180, is widely distributed in W. Siberia, where R. myriacantha does not grow. Generally speaking, like the whole series Spinosissimae, forms of the type R. myriacantha also require special study. For the present, it should be pointed out that forms identical with the authentic R. myriacantha DC. from Montpellier are apparently not encountered in the USSR; Bieberstein named the ordinary Crimean form in schedis R.polyacantha M.B., but by the rules of nomenclature this name is disqualified.
Book  (Jul 1938)  Page(s) 90.  
R. spinosissima, Scotch Rose, Burnet Rose. - (Spinosissima means very spiny). Very hardy at Edmonton. Low-growing, to about 3 feet. Flowering branchlets prickly and bristly. Leaflets appear early, dense, small, 5-9, somewhat reddish in autumn. Flowers white, pink or reddish, sometimes yellow, fragrant, often semi-double, late June. Fruit black. Perhaps has been overlooked too much in shrubbery plantings. At Beaverlodge, the Scotch Rose is not fully hardy but is one of the most satisfactory of the ornamental shrub roses; the Burnet planted in 1934 has done well and is considered one of the best.
Some R. spinosissima hybrids and varieties, likely hardy at Edmontton, are: Berwick (semi-double, deep rose); Bicolor nana (creamy-white, dwarf); Brightness (double crimson purple); Dundea (lilac -rose, white reverse); Flavoscans (semi-double, lemon); Globe (semi-double, deep rose); Lady Hamilton (semi-double, creamy-white); Lismore (double, blush); Staffa (double, white); Townsend (double, pink).
Book  (1937)  Page(s) 73.  
lutescens Pursh. (synonym of spinossissima var. hispida Koehne) [ploidy] 28
Book  (1931)  Page(s) Vol. II, p. 691.  
The BURNET ROSE (R. spinosissima), known also as the Pimpernel Rose, or Scotch Rose, is generally found on waste land near the sea, more rarely on dry, heath-clad hills inland. The whole plant rarely attains to more than a foot or so in height. Its stems are armed with numerous, straight thorns - hence its specific name, signifying in Latin 'exceedingly prickly.' The English name is given it from the fact that the general form of its small leaves, with seven or nine leaflets to each leaf, is very similar to those of the Burnet (Poterium sanguisorba) and the Burnet Saxifrage (Pimpinella).
The white or sulphur-tinted flowers are usually placed singly and are rather small. The roundish fruit is so deep a purple as to appear almost black. The juice of the ripe fruit has been used in the preparation of dye: diluted with water, it dyes silk and muslin of a peach colour and mixed with alum gives a beautiful violet, but is considered too fugitive to be of any real economic value.
This rose is frequently cultivated in gardens and a great many varieties have been raised from it. The first double variety was found in a wild state in the neighbourhood of Perth and from this one were produced about 50 others. The French have over 100 distinct varieties.
Article (magazine)  (1914)  Page(s) 371.  
R. spinosissima myriacantha, named the Rose of a Thousand Thorns, a native of Spain and Southern France, is densely set with prickles, as the specific name implies.
Website/Catalog  (1913)  Page(s) 71.  
Scotch Roses.
The Scotch Roses, the charming derivatives of Rosa spinosissima, are characterized by excessive spininess and fine, dense foliage. They thrive literally without cultivation and prosper in almost any kind of soil. The bushes grow in low, compact form, each plant resembling a huge bouquet when in full bloom. The blossoming usually takes place in June, but some of the hybrids may flower at intervals throughout the summer.
The blossoms of the Scotch Roses are beautiful in form and are seldom darker in color than pink or deep rose. The fragrance is sweet and pleasing. Several varieties are adapted for border planting because of their dwarf size and the density of the bush. They are also used in many instances for rockeries as well as hedges, or for marking division lines between properties.
The varieties here described are those whose virtues have been developed to a point where the plants can be recommended. Each is of known merit in its peculiar field.
A single Rose, with shapely, creamy white blooms of delightful fragrance. The plant grows erect, but is rather small in stature, rarely exceeding 9 inches in height. The flowers are followed by shining jet-black fruit, and very effective in winter. It is a most satisfactory Rose for rockeries.
Magazine  (Apr 1909)  Page(s) 622.  
"Some Beautiful Roses You Can Have" by Leonard Barron
Another small-flowered rose that suffers neglect through the overwhelming importance of its brothers and sisters is the Scotch brier, which will make dense, compact bushes suitable for hedges, and will flourish in dry, sandy, shallow soils where no other member of the family will even make an apology for living.
Book  (1909)  Page(s) 54-55.  Includes photo(s).
Rosa pimpinellifolia L.
Book  (1903)  Page(s) 235.  
Rosa Spinosissima. The Scotch Rose.
Well has this Rose been named "Spinosissima," for it is indeed the most spiny of all Roses, and the spines are as sharp as they are plentiful.  They are far more so than they seem to be; and a word of caution here may save the tyro an unpleasant greeting.  The Scotch Rose is a native species, growing plentifully in many parts of Britain.  I have somewhere read or heard it stated that the first double Scotch Roses were raised from seed by Mr Brown, a nurseryman at Perth, who collected plants from their native wilds, planted them in his nursery, and flowered and gathered seeds from them there.  Some of the plants raised from these seeds produced double flowers.  It is from that part of Britain many of our finest varieties have issued, and varieties have been exceedingly numerous; for they seed so abundantly, and the seed vegetates so freely, that there is no difficulty in raising seedlings.  But with English amateurs they are not popular; why, I do not know, except it arise from the short duration of their flowers.
They all form compact bushes, being usually grown as such, for they are not well adapted for standards.  They flower abundantly, and early in the season.  The flowers are small and globular, many of them as they hang on the bush looking like little balls.  I recollect being much struck with a stand of these Roses brought to one of the Horticultural exhibitions in the month of May.  The season was an early and a genial one, and they were produced in great beauty.
Scotch Roses are in good taste planted as a hedge round a Rosarium, where such may be required ; a bank of Scotch Roses I should also conceive to produce a good effect. They like a pure air and indeed what Roses do not ? but will grow almost anywhere.*
When plants of the Scotch Rose become established in the soil the stems push laterally under ground, often rising to the surface at a considerable distance from the mother plant. These are called suckers, and are separated from the mother to form new plants, and thus is the Scotch Rose propagated.  It is not easy to confound this with any other group, the spines are so thickly set on the stems. The growth is dwarf. The flowers are mostly blush, small, double, and globular in form, possessed of a peculiarly grateful fragrance. The plants resemble each other so nearly in every respect that it seems only necessary to affix the colours.
*I recollect once meeting with a plant at Garth Point, North Wales, which had fastened itself into the crevice of a bare rock, where it not only lived but flourished.  It was alone, no plant disputed its position.
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