Marijuana classification muddled and confused, says UBC expert

Tests on marijuana from around the world show their genetic makeup may be far from different from their purported background.

“There’s a lot of confusion and a lot of chaos in the system now,” says Jonathan Page, a University of B.C. botanist who helped lead the first large-scale study of the genetic diversity of cannabis. His most recent work is published today in the online journal Plos One.

“Right now, the genetic identity of a marijuana strain cannot be accurately determined by its name or reported ancestry,” Page said in a news release. “Ultimately, we require a practical, accurate and more reliable classification system of this plant.”

Since marijuana is illegal in Canada with the exception of medical use, it is not heavily studied by scientists. Producers have come up with their own system in the vacuum of evidence, he says.

“The genetics of cannabis are muddled at...

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