Common Name: blackberry
Species: Rubus spp. 
Bayer Code: RUBXX

Blackberries are perennial weeds that are often referred to as "brambles". They have an upright and vining growth habit that can completely take over waste areas when not controlled. Blackberries have prickles on the stems and leaves, and deep taproots that make chemical control difficult. Distinctive berries form in the late summer, turning from red to black in color as the season progresses.
blackberry fruit
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blackberry leaves
blackberry leaf back
Growth Season perennial weed 
Growth Habit upright OR vining 
Leaflet Number three 
Leaf Margin serrated/toothed 
Leaf Hairs upper/lower surfaceleaf hairs are present, along with distinctive thorns on the leaves and stems
Leaf/Leaflet Shape oval/egg-shaped/elliptical 
Leaf Width 1 - 2 inches 
Leaf Venation pinnate 
Leaf Arrangement alternate 
Root Type taproot 
Flower Color white