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Blackberry from WikiPedia:

And hundreds more microspecies

(the subgenus also includes the dewberries)

The blackberry is an edible berry in the Rubus genus and the Rosaceae family. The fruit are botanically termed an aggregate fruit and they are produced on plants that typically have biennial canes and perennial roots. Blackberries and raspberries are also called caneberries or brambles. It is a widespread, and well known group of several hundred species, many of which are closely related apomictic microspecies native throughout the temperate Northern hemisphere and South America.

Blackberries are perennial plants which typically bear biennial stems ("canes") from the perennial root system.

In its first year, a new stem, the primocane, grows vigorously to its full length of 3-6 m (in some cases, up to 9 m), arching or trailing along the ground and bearing large palmately compound leaves with five or seven leaflets; it does not produce any flowers.

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