They reckon weed was introduced to Australia around 1788, so I guess you could say we're talking about the definition of "landrace" as although not "native" to the country, a "pure" landrace strain from, most likely, Asia will have been introduced around that time as the various colonists, settlers, etc, started "spreading their seed" across the "New World" from the mid 1500's with.
So it comes down to definitions, as some say "native to a specific country or area", others say "a pure strain that is one of the origins of the modern hybrids".
Oh, I see the forum is having some more brainfarts, 520 and 525 error, who let the turbo burbling gurgler go in the server room, choking up the filters