Re: Another "Can't use string as an ARRAY ref"

[choroba]

OK, so you first assign a name, so probably a string to $plants->[$i]{common} :

$plants->[$i]{'common'} =  $plants->[$i]{'common_name'};

And few lines later, you try to store something in a hash ref:

    $plants->[$i]{'common'}->[$jctr]{'sizes'} = $sizes->[$j]{'plantsiz
+e'}.$sizes->[$j]{'unit'};
#   ~~~~~~~~~~~~~~~~~~~~~~~

The underlined thing is a string (comment mine). You can't use a string as a hash ref under strict.

BTW, is $jctr ever different to $j (and $kctr to $k )? If not, you can improve readability by dropping two variables.