Boysenberry

A boysenberry is suspected to be a cross between a loganberry and the western dewberry (Rubus ursinus).

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It was discovered on Rudolph Boysen's farm in northern California. Walter Knott was the first to commercially cultivate it in southern California.^[1] His family's small restaurant and pie business eventually grew into Knott's Berry Farm.

References

1. ^ [1] "Oregon Raspberry & Blackberry Commission"