A very common, aggressively rambling shrub, with round prickly stems. The plant is generally dioecious, male flowers (first photo on left) and female flowers (second photo) are borne on separate plants. The flowers typically have 5 petals, but multiple-petaled forms are occasionally found. Leaves are simple or compound, in 3s, rough and coarse-toothed. Fruits are edible (from female bushes only — for obvious reasons). The fruits of this genus are divided into “blackberry-type” (the receptacle comes away with the fruit when it is picked) and “raspberry-type” (the fruit separates easily from the receptacle when picked). The difference is immediately apparent, even in store-bought fruit.