Blackberry

• Common Name: Blackberry
• Latin Name: Rubus spp., esp. Rubus fruticosus
• Family Name: Rosaceae

Not all species of tortoises and turtles are fruit eaters, so only offer the Blackberry as a small part of the diet once you have confirmed that your tortoise or turtle is a fruit eater.  Non-fruit-eating species are not equipped to deal with the sugars present in these fruits and can suffer intestinal problems if they eat them.
 
See also Bramble.