Pale Malt can be made from American or English barley varieties, though the term is usually reserved for English Pale Ale Malt. Pale Malt typically has a Lovibond rating of 2.8 - 3.5 or so.
2-Row is a term usually reserved for American barley malt that is kilned to a Lovibond rating of 1.8 - 2.2 or so.
For example, Briess, an American maltster, makes both a Pale Ale malt
and a 2-Row Brewers malt
from American barley.
Ask your LHBS for details about what you bought.