diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 0a825f5acb..11b0810931 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -1703,7 +1703,9 @@ select:focus:required:invalid:focus {
 .input-append .add-on,
 .input-prepend .add-on,
 .input-append .btn,
-.input-prepend .btn {
+.input-prepend .btn,
+.input-append .btn-group > .dropdown-toggle,
+.input-prepend .btn-group > .dropdown-toggle {
   vertical-align: top;
   -webkit-border-radius: 0;
      -moz-border-radius: 0;
@@ -1736,9 +1738,9 @@ select:focus:required:invalid:focus {
           border-radius: 4px 0 0 4px;
 }
 
-.input-append input + .btn-group .btn,
-.input-append select + .btn-group .btn,
-.input-append .uneditable-input + .btn-group .btn {
+.input-append input + .btn-group .btn:last-child,
+.input-append select + .btn-group .btn:last-child,
+.input-append .uneditable-input + .btn-group .btn:last-child {
   -webkit-border-radius: 0 4px 4px 0;
      -moz-border-radius: 0 4px 4px 0;
           border-radius: 0 4px 4px 0;
@@ -1751,7 +1753,8 @@ select:focus:required:invalid:focus {
 }
 
 .input-append .add-on:last-child,
-.input-append .btn:last-child {
+.input-append .btn:last-child,
+.input-append .btn-group:last-child > .dropdown-toggle {
   -webkit-border-radius: 0 4px 4px 0;
      -moz-border-radius: 0 4px 4px 0;
           border-radius: 0 4px 4px 0;
diff --git a/docs/base-css.html b/docs/base-css.html
index dd34401d54..bd04e53d6f 100644
--- a/docs/base-css.html
+++ b/docs/base-css.html
@@ -1323,6 +1323,54 @@ For example, <code><section></code> should be wrapped as inlin
     </ul>
   </div>
 </div>
+</pre>
+
+          <h4>Segmented dropdown groups</h4>
+          <form class="bs-docs-example">
+            <div class="input-prepend">
+              <div class="btn-group">
+                <button class="btn" tabindex="-1">Action</button>
+                <button class="btn dropdown-toggle" data-toggle="dropdown" tabindex="-1">
+                  <span class="caret"></span>
+                </button>
+                <ul class="dropdown-menu">
+                  <li><a href="#">Action</a></li>
+                  <li><a href="#">Another action</a></li>
+                  <li><a href="#">Something else here</a></li>
+                  <li class="divider"></li>
+                  <li><a href="#">Separated link</a></li>
+                </ul>
+              </div>
+              <input type="text">
+            </div>
+            <div class="input-append">
+              <input type="text">
+              <div class="btn-group">
+                <button class="btn" tabindex="-1">Action</button>
+                <button class="btn dropdown-toggle" data-toggle="dropdown" tabindex="-1">
+                  <span class="caret"></span>
+                </button>
+                <ul class="dropdown-menu">
+                  <li><a href="#">Action</a></li>
+                  <li><a href="#">Another action</a></li>
+                  <li><a href="#">Something else here</a></li>
+                  <li class="divider"></li>
+                  <li><a href="#">Separated link</a></li>
+                </ul>
+              </div>
+            </div>
+          </form>
+<pre class="prettyprint linenums">
+&lt;form&gt;
+  &lt;div class="input-prepend"&gt;
+    &lt;div class="btn-group"&gt;...&lt;/div&gt;
+    &lt;input type="text"&gt;
+  &lt;/div&gt;
+  &lt;div class="input-append"&gt;
+    &lt;input type="text"&gt;
+    &lt;div class="btn-group"&gt;...&lt;/div&gt;
+  &lt;/div&gt;
+&lt;/form&gt;
 </pre>
 
           <h4>Search form</h4>
diff --git a/docs/templates/pages/base-css.mustache b/docs/templates/pages/base-css.mustache
index 6fc646e8c8..e9377026ac 100644
--- a/docs/templates/pages/base-css.mustache
+++ b/docs/templates/pages/base-css.mustache
@@ -1260,6 +1260,54 @@
     &lt;/ul&gt;
   &lt;/div&gt;
 &lt;/div&gt;
+</pre>
+
+          <h4>{{_i}}Segmented dropdown groups{{/i}}</h4>
+          <form class="bs-docs-example">
+            <div class="input-prepend">
+              <div class="btn-group">
+                <button class="btn" tabindex="-1">Action</button>
+                <button class="btn dropdown-toggle" data-toggle="dropdown" tabindex="-1">
+                  <span class="caret"></span>
+                </button>
+                <ul class="dropdown-menu">
+                  <li><a href="#">{{_i}}Action{{/i}}</a></li>
+                  <li><a href="#">{{_i}}Another action{{/i}}</a></li>
+                  <li><a href="#">{{_i}}Something else here{{/i}}</a></li>
+                  <li class="divider"></li>
+                  <li><a href="#">{{_i}}Separated link{{/i}}</a></li>
+                </ul>
+              </div>
+              <input type="text">
+            </div>
+            <div class="input-append">
+              <input type="text">
+              <div class="btn-group">
+                <button class="btn" tabindex="-1">Action</button>
+                <button class="btn dropdown-toggle" data-toggle="dropdown" tabindex="-1">
+                  <span class="caret"></span>
+                </button>
+                <ul class="dropdown-menu">
+                  <li><a href="#">{{_i}}Action{{/i}}</a></li>
+                  <li><a href="#">{{_i}}Another action{{/i}}</a></li>
+                  <li><a href="#">{{_i}}Something else here{{/i}}</a></li>
+                  <li class="divider"></li>
+                  <li><a href="#">{{_i}}Separated link{{/i}}</a></li>
+                </ul>
+              </div>
+            </div>
+          </form>
+<pre class="prettyprint linenums">
+&lt;form&gt;
+  &lt;div class="input-prepend"&gt;
+    &lt;div class="btn-group"&gt;...&lt;/div&gt;
+    &lt;input type="text"&gt;
+  &lt;/div&gt;
+  &lt;div class="input-append"&gt;
+    &lt;input type="text"&gt;
+    &lt;div class="btn-group"&gt;...&lt;/div&gt;
+  &lt;/div&gt;
+&lt;/form&gt;
 </pre>
 
           <h4>{{_i}}Search form{{/i}}</h4>
diff --git a/less/forms.less b/less/forms.less
index 0f3f425edc..739b40d11e 100644
--- a/less/forms.less
+++ b/less/forms.less
@@ -462,7 +462,8 @@ select:focus:required:invalid {
     border: 1px solid #ccc;
   }
   .add-on,
-  .btn {
+  .btn,
+  .btn-group > .dropdown-toggle {
     vertical-align: top;
     .border-radius(0);
   }
@@ -489,7 +490,7 @@ select:focus:required:invalid {
   select,
   .uneditable-input {
     .border-radius(@inputBorderRadius 0 0 @inputBorderRadius);
-    + .btn-group .btn {
+    + .btn-group .btn:last-child {
       .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
     }
   }
@@ -499,7 +500,8 @@ select:focus:required:invalid {
     margin-left: -1px;
   }
   .add-on:last-child,
-  .btn:last-child {
+  .btn:last-child,
+  .btn-group:last-child > .dropdown-toggle {
     .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
   }
 }