WordPress at a glance
action is not described

lost_password action-hook . WP 1.5.1

Fires before the lost password form.

Usage

add_action( 'lost_password', 'action_function_name_1842' );
function action_function_name_1842(){
	// action...
}

Where the hook is called

In file: /wp-login.php
lost_password
wp-login.php 565
do_action( 'lost_password' );

Where the hook is used (in WP core)

Does not used.