Difference in barley origin

[strogermead]

What are the (are there any) differences in using barley from Finland, Ireland, UK, Belgium, Germany, US or NZ? How will I taste the difference between belgian and UK pilsner malt? Or american and german pale ale or crystal malt? The Internet is pretty vague about this.

 

[Ozarks Mountain Brewery]

most of the base malts are very similar in taste, a couple noticeably different to the experience brewer, if it says crystal its most likely the same, as for the pilsners different country's have more flavor that the other, some less but the main taste is the same, example any Belgian grain has more flavor, any floor malted grain does too, American grains are kind of middle of the ground with flavor, some German grains are a drier flavor

 

[GFHomebrew]

And I find some different base grains will mash better meaning you'll get better extraction from them like NZ gladfield they yield more sugar me thinks.