Graines Rosier des haies, Églantier, Rosa canina
Rose of hedges, riding, Rosa Canina |
The dog rose , hedge rose or dog rose ( Rosa canina L.), is a species of thorny shrub in the family Rosaceae , very common in temperate regions of the Old World . It is found in hedges and woods, especially on the plain . It is a species of botanical roses with many ecotypes , always with single flowers . It is used as a rootstock for varieties of roses improved. Some of its hybrids are cultivated roses .
20 seeds - Average germination: 60% - Cold stratification 4/5 months before sowing
- Common names (popular science): Dog rose (hence the scientific name Rosa canina ), Hedge rose, Dog rose 1 . The name “dog rose” comes from the property once attributed to the root of this plant, which was supposed to cure the bites of rabid dogs 2 .
- Vernacular names (everyday language), which can also designate other species: dog rose, wild rose, hipster (name given to the fruit of the dog rose and which, by metonymy, can designate the entire plant 3 ). The term "ass scratcher" refers to the hairs on the inside of the fruit which can be itchy.
This rosehip is a shrub that can reach 1 to 5 meters in height, with erect, arched stems , provided with very prickly curved prickles. They are provided with developed stipules .
The alternate, compound leaves have 5 to 7 toothed elliptical leaflets.
The plant is hermaphroditic . It blooms from May to July. The flowers are pollinated by insects and the seeds are dispersed by birds.
Rosehip is very rich in sugars and vitamin C. It is made into jams . The fruits (achenes) and the hairs contained inside the rose hip have a very irritating effect on the skin and the mucous membrane . Their contact causes unbearable itching (use as scratching hair) and their ingestion causes a very important anal pruritus (hence the name butt scratcher). It is because of this strong irritant power that rose hips are sometimes classified as low- toxic fruits 6 .
In the forest, the species is very popular with roe deer .
The Dog Rose was used as rootstock for various varieties of roses , but currently only the varieties Rosa canina inermis (thornless) and Rosa canina Pfänder (excellent for grafting standard roses) are still used.
Horticultural varieties have been bred for ornamental cultivation.
Wild rose is used in perfumery for its delicate notes.
The fruits of this rosehip, or rosehips , have medicinal and food uses . Very rich in vitamin C (20 times more than citrus fruits ), they also contain vitamins B and PP, provitamin A and mineral salts. Fresh, softened by the first frosts or after light cooking, they form a paste that is eaten sweetened with dairy products. But they are mainly used in jams , syrups and jellies . Dried and reduced to powder, they are used in decoction for herbal teas. They are the basis of the traditional Czech and Slovak dish called šípková omáčka , a kind of beef stew.
The fruit pulp is edible (jam) 8 .
Content subject to CC-BY-SA 3.0 license . Source: Article Rosa canina from Wikipedia in French ( authors )
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