Index: src/wp-admin/edit-tags.php
===================================================================
--- src/wp-admin/edit-tags.php	(revision 42973)
+++ src/wp-admin/edit-tags.php	(working copy)
@@ -351,12 +351,19 @@
 
 </form>
 
+<?php
+
+$has_2_columns_layout = current_user_can( $tax->cap->edit_terms );
+
+if ( $has_2_columns_layout ) {
+?>
 <div id="col-container" class="wp-clearfix">
 
 <div id="col-left">
 <div class="col-wrap">
 
 <?php
+}
 
 if ( current_user_can( $tax->cap->edit_terms ) ) {
 	if ( 'category' == $taxonomy ) {
@@ -558,11 +565,13 @@
 </form></div>
 <?php } ?>
 
+<?php if ( $has_2_columns_layout ) { ?>
 </div>
 </div><!-- /col-left -->
 
 <div id="col-right">
 <div class="col-wrap">
+<?php } ?>
 
 <?php $wp_list_table->views(); ?>
 
@@ -610,10 +619,13 @@
 do_action( "after-{$taxonomy}-table", $taxonomy );
 ?>
 
+<?php if ( $has_2_columns_layout ) { ?>
 </div>
 </div><!-- /col-right -->
 
 </div><!-- /col-container -->
+<?php } ?>
+
 </div><!-- /wrap -->
 
 <?php if ( ! wp_is_mobile() ) : ?>