Sweet tea (Rubus suavissimus S.Lee) so named for its leaves taste sweet, sweet tea has a long history in daily uses in Guang Xi province of China,simple processed and then used as drink or add into food for orally taken.
Plant shrub height 1~3 m,stem erect or slope, with hull stick, color green. Single leave crossfigure nearly round, 5~16 cm long, bottom heart shape. Palm shape 5~8 split, needle or ellipse shape,middle split longer normally, sawtooth growing around; flowering from spring to autumn,blossom flowering top branch diameter 3~5cm; footstalk curve,1.5~4.5cm long;fruit egg shape,orange color when mature,taste sweet.
Phytochemical and Nutritional note in brief of Sweet Tea composition:
Major Effective Content: Rubusoside; Ratio: 5%
Sweet Tea is also known as Chinese Blackberry Tea (Rubus Suavissimus S. Lee). This sweet tea contains a natural sweetener, known as Rubusoside. Rubusoside is low in calories making this tea an ideal drink for the calorie-conscious consumer.
Rubusoside is commonly known as either Sweet Tea Extract or Chinese Blackberry Extract. Our Rubososide is extracted from the leaves of the Chinese Blackberry Bush (Rubus Suavissimus S. Lee). The Extract is 200~300 times as sweet as cane sugar and contains over 70% Rubusoside. This Extract is processed into a white powder, which is very soluble in water and can be easily mixed with food without changing the color of the processed food.
Effect: Rubusoside is a Diterpene Glycoside composed of steviol and glucoside,low energy but high sweet,300 times than sugar,help to treatment for fat caused by overdose of sugar and other disease caused from this,such as high blood pressure,diabetes,blood vessel problems,kidney weak,etc.

Other Phytochemicals and Benefit:
Sweet tea contains nearly 18 kinds of amino acid, about 13435mgs amino acid per every 100grams dry sweet tea, 8 kinds of which necessary and could not synthesis inside body.
Sweet tea also contains other nutrients and many trace element necessary, such as Calcium 0.84%, Zinc 105.5mg/kg, Germanium 5.5ug/kg, Selenium 17.94ug/kg, and Potassium,Magnesium,Iron,Sodium,Copper,Chromium, Strontium,Lithium, no contain poisonous things such as arsenic or aluminium, no contain caffein which cause swirl,heartbeat speedup,heart-throb,anxiety and irritability,discomfort ; and the trace element germanium and selenium all higher than green tea and black tea, Sweet tea also contains Vitamin C,Vitamin B1,Vitamin B2,Vitamin B3, SOD, content ratio for Vitamin C from fresh sweet tea leaves can reach 115mg/100g, about 4.1% bio flavones, 18.04% polyphenols and 5% Rubusoside