Allergen

      Tamara K: "The news says the chenopods are bad in the air again today.  It sure feels like it outside.  And what even are they, other than pollen?"

      Roberta X: "I think they're like pinnapeds.  Or maybe tardigades.*"

      Tam:  "We should find out."

      A few minutes later -- and after I detour to tasty Indian cuisine (yum, chana pods!), because I have only heard the word, while Tam knows how to spell it -- we have the answer.

      Chenopods.  Or possibly pigweed; it really is a fine line.  But the first turns out to be a meaner cousin of quinoa and either one can make you sneeze.
____________________
* Sometimes I live in a much more interesting world.