diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -460,12 +460,17 @@
 
 .. method:: generator.throw(type[, value[, traceback]])
 
-   Raises an exception of type ``type`` at the point where generator was paused,
+   Raises an exception at the point where the generator was paused,
    and returns the next value yielded by the generator function.  If the generator
    exits without yielding another value, a :exc:`StopIteration` exception is
    raised.  If the generator function does not catch the passed-in exception, or
    raises a different exception, then that exception propagates to the caller.
 
+   The interpretation of the arguments is the same as for the :keyword:`raise`
+   statement, where ``type`` can be either an exception class or an exception
+   instance and ``value`` can be :const:`None`, an exception instance, a single
+   argument or an argument tuple to be passed to the exception class constructor.
+
 .. index:: exception: GeneratorExit