Do blackberries grow on trees? i know as a kid blackberries grew on bushes but recently...

i know as a kid blackberries grew on bushes but recently i come across a huge tree with them growing on it. are these not dangerous to eat? or are they something else?
It looked similar to it be sick so...
Are you describing a mulberry tree? If so, they're tasty but they don't taste resembling blackberries.

http://en.wikipedia.org/wiki/Image:Mulbe...
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It sounds approaching you have a mulberry tree. I own never had them but my mom tell me stories about intake mulberries when she was a kid. I am guessing they are not dangerous to eat. I know raccoons put away them like crazy.

http://en.wikipedia.org/wiki/Mulberry
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Answers:    What you've probably found is a mulberry tree. They're slightly longer than standard blackberries, near a thin stem. The berries are upright, but don't EVER plant one--they are harder than h*ll to get rid of (I've be trying for about 3 years).
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no blackberries are a bush fruit and they have prickles approaching roses and they can cling to anything if you had a photo i could update you if they are safe to get through so i suggest leave them be.simply in crust.
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