Country intro
The Himalayan Blackberry, Rubus armeniacus.
We are (un)fortunate to have both species of introduced blackberries in our yard. The two species can be easily distinguished by their leave shape. A description of the leave from E-Flora BC, “Alternate, evergreen, palmately compound, 5-20 cm long; leaflets 5 on first-year canes, mostly 3 on flowering canes, egg-shaped, 5-12 cm long, double-saw-toothed and abruptly sharp-pointed at the tip, green and smooth above, greyish-woolly beneath, the leaf-stalks and midveins beneath prickly; stipules linear.”
For comparison, 
''Rubus armeniacus'', Armenian Blackberry or Himalayan Blackberry, is a species of ''Rubus'' in the blackberry group ''Rubus'' subgenus ''Rubus'' series ''Discolores'' Focke. It is native to Armenia and Northern Iran, and widely naturalised elsewhere. Both its scientific name and origin have been the subject of much confusion, with much of the literature using one or the other of the two synonyms, and often mistakenly citing its origin as western European.
