Original sentence: Blackcaps have been used in the breeding of many Rubus hybrids
Edited sentence: Although they are often found in nurseries, black raspberries are usually quite nasty little buggers that don't produce much fruit, but spread like weeds.Canes readily root at the tips when they contact the ground.Despite their inneficiancies as harvest fruits, blackcaps are often used in the breeding of other Rubus hybrids.Flower: Greenish, small white petals, appearing in May, not showy.Form: Arching canes may reach 4 to 6 feet high, often forming tangles.Fruit: Juicy, black, multiple of drupes.Info below is from www.Leaf: Alternate, palmately compound, 3 to 5 leaflets with serrated margins, small prickles on petiole, light green above, paler below.Purplish-red with an abundance of white glaucous bloom and hooked prickles.Ripen in June to July.Twig: Arching "canes" which generally live 2 years.When picked they separate from the fleshy core forming a hollow shell