It forms impenetrable thickets, spreads aggressively and has significant negative impacts to native plants, wildlife, recreation and livestock. There are tens of thousands of blackberry hybrids and segregates of various types, the thornless blackberry being a modern development. The canes of Himalayan blackberry can reach lengths of 40 feet and are typically green to deep red in color.  Flora of North America, published in 2014, considers the taxonomy unsettled, and tentatively uses the older name Rubus bifrons.. Both first and second year shoots are spiny, with short, stout, curved, sharp spines. Leaves are large, round to oblong and toothed, and typically come in sets of Rubus armeniacus is a perennial plant that bears biennial stems ("canes") from the perennial root system. The shrubs appear as "great mounds or banks" (Bailey 1945), with … It is native to Armenia and Northern Iran, and widely naturalised elsewhere. Himalayan Blackberry Armenian Blackberry Giant Blackberry Description. In their second year, the shoots become smooth and produce flowering canes whose smaller leaves have 3 leaflets. Control is recommended but not required because it is widespread in King County. Flora of North America, published in 2014, c… Common names are from state and federal lists. Rubus armeniacus, the Himalayan blackberry or Armenian blackberry, is a species of Rubus in the blackberry group Rubus subgenus Rubus series Discolores (P.J. It is common in the mountains of North Carolina and occasionally found on the Piedmont and coastal parts of the state. It was ¿rst introduced from Europe to the area as a crop plant in the 1800’s. Rubus armeniacus soon escaped from cultivation and has become an invasive species in most of the temperate world. Main canes up to 10 feet long with trailing canes reaching up to … The canes of Himalayan blackberry can reach lengths of 40 feet and are typically green to deep red in color. In some areas, the plant is cultivated for its berries, but in many areas it is considered a noxious weed and an invasive species.  Broken roots can resprout, making manual removal extra labor intensive, and glyphosate herbicides are largely ineffective with this plant. This plant has no children. Consider replanting the area with native plants well-suited to our local climate and soil conditions that will also provide benefits to our local ecosystems. Riversides covered with blackberry often indicate degraded conditions and may mask eroding banks. Blackcap ( Rubus leucodermis ) a less common native, can be distinguished by its paler green-blue erect stems, purple fruits, and leaves that have fine white hairs underneath. These thickets can oftentimes provide good nesting grounds for birds, and help to provide places to rest/hide for other slightly larger mammals, such as rabbits, squirrels, beavers, etc.. : Himalayan Blackberry is an arching woody shrub. Leaflets are large, broad, oblong, 6 ¼ to 13 cm Mature plants can reach 15 feet in height. IDENTIFIERS. It grows upright on open ground and will climb over and trail over other vegetation. Unlike other invasive species, this plant can easily establish itself and continue to spread in ecosystems that have not experienced a disturbance. The leaves on first year shoots are 7–20 cm long, palmately compound with either three or more commonly five leaflets. Blackberry can be controlled by digging, mowing, herbicide, plowing, and/or livestock grazing (especially goats). Himalayan blackberry is a tall semi-woody shrub, characterized by thorny stems and dark edible fruits. Himalayan blackberry ( Rubus armenaicus) is a perennial shrub that spreads vegetatively to form large mounds. Native blackberries also grow in this region, but they are a much rarer sight. These leaflets are oval-acute, dark green above and pale to whitish below, with a toothed margin, and snaring, hooked thorns along the midrib on the underside. Himalayan blackberry is a Class C noxious weed that is not selected for required control in King County. Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. Focke. Repeated cutting can help keep the plants from overtaking over vegetation. Leaves are palmately compound and usually have five leaflets.  Rubus armeniacus was used in the cultivation of the Marionberry cultivar of blackberry. Latin Names: Rubus armeniacus Rubus discolor Rubus procerus. Flowers are not produced on first year shoots. The most labor friendly and cost-effective way to remove this plant in smaller-scale infestations is to cut it as close to the ground as possible and then apply a drop or two of a triclopyr-based herbicide to the cut. This blackberry species also has furrowed, angled stems while others are typically round. The canes can turn more red/purple if they are exposed to bright sunlight. First-year canes develop from buds at or below the ground surface and bear only leaves. Focke. Legal Status.  The shrub spreads through rhizomes underground, making it very difficult to remove. Rubus armeniacus, the Himalayan blackberry or Armenian blackberry, is a species of Rubus in the blackberry group Rubus subgenus Rubus series Discolores (P.J. It is native to Armenia and Northern Iran, and widely naturalised elsewhere. This is common in the summer. Himalayan blackberry out-competes native understory vegetation and prevents the establishment of native trees that require sun for germination such as Pacific Madrone, Douglas Fir and Western White Pine. Mature plants can reach up to 15 feet in height. For more information on noxious weed regulations and definitions, see Noxious weed lists and laws. Due to the deep roots, digging up large established plants is difficult and may need to be repeated if not all the roots are removed. Foliage The leaves of the prima cane (first year shoots) are 2.8-7.9 in. Rubus armeniacus Focke – Himalayan blackberry.  Because it is so hard to contain, it quickly gets out of control, with birds and other animals eating the fruit and then spreading the seeds. Removal of top growth by mowing, cutting or grazing with goats will eventually kill blackberry if done regularly and over several years. Description Blackberry, is a perennial shrub in the family Rosaceae that is grown for its aggregate black fruit of the same name. Rubus armeniacus is an arching woody shrub. The name blackberry is used to describe several species, including Rubus fruticosis (wild blackberry), Rubus ursinus and Rubus argutus, two species native to North America. The leaflets occur in groups of three or five and each resembles a large rose leaf.