The loganberry was developed in 1881 by James H. Logan (1841-1928), and American lawyer and horticulturist, in Santa Cruz, California. It is a cross between a blackberry and a raspberry.
It's a hybrid berry; cross of a blackberry & raspberry.
yes. poisonus.
Bramble plant (Rubus loganobaccus) of the rose family.
I believe it is the Boysenberry, first created by Mr. Knott of Knott's Berry Farm in Buena Park, CA.
it is a type of plant fist found in Europe in the 1800`s