Index: src/main/java/hudson/plugins/plot/Plot.java
===================================================================
--- src/main/java/hudson/plugins/plot/Plot.java	(revision 19313)
+++ src/main/java/hudson/plugins/plot/Plot.java	(working copy)
@@ -412,11 +412,15 @@
         loadPlotData();
         // extract the data for each data series
         for (Series series : getSeries()) {
-            Properties seriesData = loadSeriesData(series,project.getWorkspace(),logger);
-            if (seriesData != null) {
-                rawPlotData.add(new String[] {
+            Properties[] matchingFilesData = loadSeriesData(series,project.getWorkspace(),logger);
+            for (Properties seriesData : matchingFilesData) {
+                String label = series.getLabel();
+                if (label == null || label.length() == 0) {
+                    label = seriesData.getProperty("LABEL");
+                }
+		rawPlotData.add(new String[] {
                     seriesData.getProperty("YVALUE"),
-                    series.getLabel(),
+                    label,
                     build.getNumber() + "", // convert to a string
                     build.getTimestamp().getTimeInMillis() + "",
                     seriesData.getProperty("URL")
@@ -632,37 +636,44 @@
      * @return a properties object that contains the retrieved series data
      *         from the workspace
      */
-    private Properties loadSeriesData(Series series, FilePath workspaceRootDir, PrintStream logger) {
+    private Properties[] loadSeriesData(Series series, FilePath workspaceRootDir, PrintStream logger) {
         InputStream in = null;
         FilePath[] seriesFiles = null;
         try {
             seriesFiles = workspaceRootDir.list(series.getFile());
         } catch (Exception e) {
             logger.println("Exception trying to retrieve series files: " + e);
-            return null;
+            return new Properties[0];
         }
         if (seriesFiles != null && seriesFiles.length < 1) {
             logger.println("No plot data file found: " + series.getFile());
-            return null;
+            return new Properties[0];
         }
-        try {
-            in = seriesFiles[0].read();
-            logger.println("Saving plot series data from: " + seriesFiles[0]);
-            Properties data = new Properties();
-            data.load(in);
-            return data;
-        } catch (Exception e) {
-            logger.println("Exception reading plot series data from: " + seriesFiles[0]);
-            return null;
-        } finally {
-            if (in != null) {
-                try {
-                    in.close();
-                } catch (IOException ignore) {
-                    //ignore
+        Properties[] result = new Properties[seriesFiles.length];
+        for (int i = 0; i < seriesFiles.length; i++) {
+            try {
+                in = seriesFiles[i].read();
+                logger.println("Saving plot series data from: " + seriesFiles[i]);
+                Properties data = new Properties();
+                data.load(in);
+                if(!data.containsKey("LABEL") ) {
+                    data.setProperty("LABEL", seriesFiles[i].getName());
                 }
+                result[i] = data;
+            } catch (Exception e) {
+        	logger.println("Exception reading plot series data from: " + seriesFiles[i]);
+        	return new Properties[0];
+            } finally {
+        	if (in != null) {
+        	    try {
+        	        in.close();
+        	    } catch (IOException ignore) {
+        	        //ignore
+                    }
+                }
             }
-        }
+	}
+        return result;
     }
 
 }
Index: src/main/webapp/help-series.html
===================================================================
--- src/main/webapp/help-series.html	(revision 19313)
+++ src/main/webapp/help-series.html	(working copy)
@@ -3,13 +3,15 @@
   <a href='ws/'>the workspace root</a>, that
   contains the data value for this data series.  The file must
   contain a <code>YVALUE</code> property and may optionally
-  contain a <code>URL</code> property. If present, the URL will be 
-  opened when the data point on the plot is clicked.
+  contain a <code>URL</code> property or a <code>LABEL</code> property. If present, the URL will be 
+  opened when the data point on the plot is clicked.  The LABEL property will be used to label 
+  the data series only if no label is defined (below).
   <p>
   The specification of this file can use wildcards like <code>build/report/*/report.properties</code>
   but only the first file resolved by the wildcard will be used.
   See <a href='http://ant.apache.org/manual/CoreTypes/fileset.html'>
-  the @includes of Ant fileset</a> for the exact format.
+  the @includes of Ant fileset</a> for the exact format.  More information 
+  about Ant's patterns can be found <a href='http://ant.apache.org/manual/dirtasks.html#patterns'>here</a>.
   <p>
   For example, a properties file might look like:
   <pre>
Index: src/main/webapp/help-legend.html
===================================================================
--- src/main/webapp/help-legend.html	(revision 19313)
+++ src/main/webapp/help-legend.html	(working copy)
@@ -1,3 +1,5 @@
 <div>
-  Optional. Specifies the legend label for this data series. 
+  Optional. Specifies the legend label for this data series.  <b>Leave this 
+  field empty to use the LABEL property from the property file (if provided), 
+  or otherwise the final component of the filename (if LABEL is not provided).</b>
 </div>