Flower Fairies by Cicely Mary Barker - Blackberry Flower Fairy

My berries cluster black and thick
For rich and poor alike to pick.
I'll tear your dress, and cling, and tease,
And scratch your hands and arms and knees.
I'll stain your fingers and your face,
And then I'll laugh at your disgrace.
But when the bramble-jelly's made,
You'll find your trouble well repaid.

Blackberry. 
Blackberries are native to Asia, Europe, North and South America. However, blackberries grown in specific regions are largely derived from species indigenous to that region. Blackberries have been used in Europe for over 2000 years, for eating, medicinal purposes, and as hedges to keep out marauders.  In Europe, R. lacinatus ("cut leaf" or "evergreen") was the first domesticated species; it was imported into the Pacific Northwest in 1860, where it produced one of the main cultivars for that region, 'Thornless Evergreen'. R. ursinus is native to the Pacific Northwest and has been important in the development of trailing cultivars grown in that region.

The word "Bramble" means "envy" in the language of flowers. Blackberries and dewberries are symbolic of remorse. On both sides of the Atlantic Ocean, brambles were used medicinally hundreds of years ago. European blackberry juice was used to treat infections of the mouth and eyes until the 16th century. In the Pacific Northwest, salmonberry (R. spectabilis), the powdered bark was used in for toothache relief. A tea made from the leaves of Rubus macropetalus in western Washington is said to aid digestion. Thimbleberry (R. odoratus) and blackberry are being studied for tannins as anticancer drugs. The roots and stems are peeled and boiled, and the liquid drank to arrest vomiting. Blackberry and raspberry root decoctions have been used to remedy dysentery. Blackberries and raspberries contain relatively high quantities of ellagic acid, which has a wide range of functions: Anti-carcinogen/anti-mutagen, inhibition of HIV binding to cells, inhibition of blood clotting, and free radical scavenging have been documented in humans.