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"Bramble" is the common name for the genus Rubus which includes raspberries, blackberries and their hybrids and cultivars.
Blackberry plants naturally produce stems called canes that live for only two years before dying and being replaced by new stems. The first-year canes arise from the base or crown of the plant and ...
Rubus vestitus is a European species of brambles in the rose family, called European blackberry [2] in the United States. It is native to Europe and naturalized along the northern Pacific Coast of the United States and Canada (British Columbia, Washington, Oregon). [2] Rubus vestitus is a spiny shrub sometimes as much as 2 meters (80 inches ...
Rubus pensilvanicus, known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central North America from Newfoundland south to Georgia, west as far as Ontario, Minnesota, Nebraska, Missouri, and Arkansas. The species is also established as a naturalized plant in California. [2] [3]
Rubus ulmifolius is a species of wild blackberry known by the English common name elmleaf blackberry or thornless blackberry and the Spanish common name zarzamora.It is native to Europe and North Africa, and has also become naturalized in parts of the United States (especially California), Australia, and southern South America.
Cercosporella rubi is a plant pathogenic fungus which causes blackberry rosette, [1] a disease that is also known as double blossom [2] or witches' broom [3] of blackberry. In infected plants, the symptoms that C. rubi causes are double blossoms as well as witches' brooms .
Second-year plants develop racemes of flowers each containing 5–20 flowers. [4] The flowers are typically 5-merous with large, white petals and light green sepals, borne in mid-spring. [5] Second-year plants are also capable of growing the fruit which gives the plant's common name, the blackberry. The fruits are compound drupes which change ...
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