diff --git a/core/modules/toolbar/toolbar.module b/core/modules/toolbar/toolbar.module
index bcb09cc..215cac4 100644
--- a/core/modules/toolbar/toolbar.module
+++ b/core/modules/toolbar/toolbar.module
@@ -29,7 +29,7 @@ function toolbar_help($route_name, RouteMatchInterface $route_match) {
       $output .= '<dt>' . t('Tabs') . '</dt>';
       $output .= '<dd>' . t('Tabs are buttons, displayed in a bar across the top of the screen. Some tabs execute an action (such as starting Edit mode), while other tabs toggle which tray is open.') . '</dd>';
       $output .= '<dt>' . t('Trays') . '</dt>';
-      $output .= '<dd>' . t('Trays are lists of links, displayed either vertically or horizontally below the tab bar, depending on the browser width. In wide browser widths, the user has the ability to toggle from vertical to horizontal, using a link at the bottom or right of the tray. Tray links only have open/close behavior in vertical mode.') . '</dd>';
+      $output .= '<dd>' . t('Trays are usually lists of links, which can be hierarchical like a menu. If a tray has been toggled open, it is displayed either vertically or horizontally below the tab bar, depending on the browser width. In wide browser widths, the user has the ability to toggle from vertical to horizontal, using a link at the bottom or right of the tray; hierarchical menus only have open/close behavior in vertical mode.') . '</dd>';
       $output .= '</dl>';
       return $output;
   }