Index: modules/taxonomy/taxonomy.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/taxonomy/taxonomy.pages.inc,v
retrieving revision 1.52
diff -u -p -r1.52 taxonomy.pages.inc
--- modules/taxonomy/taxonomy.pages.inc	3 Aug 2010 02:02:02 -0000	1.52
+++ modules/taxonomy/taxonomy.pages.inc	22 Aug 2010 10:41:41 -0000
@@ -29,11 +29,15 @@ function taxonomy_term_page($term) {
   drupal_set_breadcrumb($breadcrumb);
   drupal_add_feed('taxonomy/term/' . $term->tid . '/feed', 'RSS - ' . $term->name);
 
-  $build['term_heading'] = array(
-    '#prefix' => '<div class="term-listing-heading">',
-    '#suffix' => '</div>',
-    'term' => taxonomy_term_view($term, 'full'),
-  );
+  $build = array();
+  // Add term heading if the term has a description
+  if (!empty($term->description)) {
+    $build['term_heading'] = array(
+      '#prefix' => '<div class="term-listing-heading">',
+      '#suffix' => '</div>',
+      'term' => taxonomy_term_view($term, 'full'),
+    );
+  }
 
   if ($nids = taxonomy_select_nodes($term->tid, TRUE, variable_get('default_nodes_main', 10))) {
     $nodes = node_load_multiple($nids);
Index: modules/taxonomy/taxonomy.test
===================================================================
RCS file: /cvs/drupal/drupal/modules/taxonomy/taxonomy.test,v
retrieving revision 1.88
diff -u -p -r1.88 taxonomy.test
--- modules/taxonomy/taxonomy.test	8 Aug 2010 02:06:56 -0000	1.88
+++ modules/taxonomy/taxonomy.test	22 Aug 2010 10:41:42 -0000
@@ -566,6 +566,14 @@ class TaxonomyTermTestCase extends Taxon
     $this->assertText($edit['name'], t('The randomly generated term name is present.'));
     $this->assertText($edit['description[value]'], t('The randomly generated term description is present.'));
 
+    // Did this page request display a 'term-listing-heading'?
+    $this->assertPattern('|class="term-listing-heading"|', 'Term page displayed the term description element.');
+    // Check that it does NOT show a description when description is blank.
+    $term->description = '';
+    taxonomy_term_save($term);
+    $this->drupalGet('taxonomy/term/' . $term->tid);
+    $this->assertNoPattern('|class="term-listing-heading"|', 'Term page did not display the term description when description was blank.');    
+
     // Check that the term feed page is working.
     $this->drupalGet('taxonomy/term/' . $term->tid . '/feed');