Ber tree may be erect or wide-spreading , with gracefully drooping thorny branches , zigzag branch lets , thorn less or set with short , sharp straight or hooked spines .

It may be a bushy shrub NUMBER@1 m high , or a tree NUMBER@2 m tall ; erect or wide-spreading , with gracefully drooping branches and downy , zigzag branchlets , with short , sharp straight or hooked spines .
