WordPress at a glance
filter is not described

lostpassword_url filter-hook . WP 2.8.0

Filters the Lost Password URL.

Usage

add_filter( 'lostpassword_url', 'filter_function_name_6450', 10, 2 );
function filter_function_name_6450( $lostpassword_url, $redirect ){
	// filter...

	return $lostpassword_url;
}
$lostpassword_url(string)
The lost password page URL.
$redirect(string)
The path to redirect to on login.

Where the hook is called

wp_lostpassword_url()
wp-includes/general-template.php 508
return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );

Where the hook is used (in WP core)

Does not used.