A very common, aggressively rambling shrub with round prickly stems. The plant is generally dioecious, male and female flowers (respectively the left hand and second from left photos) 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 (from female bushes only — for obvious reasons) are edible. The fruits of this genus are divided into “blackberry-type” which means that the receptacle comes away with the fruit when it is picked and “raspberry-type” which means that the fruit separates easily from the receptacle when picked. The difference is immediately apparent even in store-bought fruit.