Do you suppose I could grow a betel palm tree if I brought some betel nuts home from Taiwan to Canada?

I say you get a life, tree hugger.

Palm Trees in Oak Bay

"The Palm Tree Capital of Canada"

Oak Bay is Victoria, British Columbia's scenic 'Seaside Village'

http://www.palmtreesinoakbay.com/

You might want to read the excerpt below/including the link

Seed Selection and Germination - Mature fruits (nuts)

of a desired variety, “Red” or “White,” are used as seed

source. However, because the betel-nut is known to be

wind-pollinated, there is no guarantee that a seed from a

desired variety will grow to bear the same variety due to

the effects of cross-pollination. Unfortunately, cross pollination

cannot be detected until the planting material

(seed) becomes mature and produces its own nuts.

http://www.hawaii.edu/hivandaids/Betel-Nut%20Palm%...

I can't say for sure about the seeds producing during your life time but the palm trees certainly grow in parts of Canada and most certainly in your area.

Missouri USA

Nowadays, only ugly chicks sell betel nuts. Or they just use a crapload of makeup. All the good looking girls go work as part time models or give out sample beauty products or they get a job at the front desk at random companies.

You might want to check with the department of agriculture to see if it is legal to bring back such. You can't begin to imagine the damage that can be done to an Eco system by the introduction of just one plant or animal that has no natural preadetor in that system. Give it some serious thought before you do it.