From what I can read on t'interweb, Canadian Willow is predominantly not Salix Alba Caerulea, and more generally is either Salix alba 'Vitellina-Tristis' or Salix Sepulcralis 'Chrysocoma' which apparently grow better in cold climates. These however are not your classical straight willow tree, but rather the weeping sort.
So I think the question as to can you provide someone with a bat made of canadian willow is a fair question. I think it would be interesting to see whether anyone could really identify the difference.
I'll raise canners bid to £31...