The following Visualforce components do not have dynamic Apex representations:
<apex:actionRegion>
<apex:attribute>
<apex:component>
<apex:componentBody>
<apex:composition>
<apex:define>
<apex:dynamicComponent>
<apex:flash>
<apex:inputFile>
<apex:include>
<apex:insert>
<apex:pageMessage>
<apex:pageMessages>
<apex:variable>
<apex:vote>
Any non-<apex:> tag, like <chatter:>, <flow:>, <ideas:>, <knowledge:>, <messaging:>, or <site:>
Note: This component must be enclosed within an <apex:chart> component. You can have multiple <apex:barSeries> and <apex:lineSeries> components in a single chart.
Note: This component must be enclosed by a data series component (<apex:barSeries>, <apex:lineSeries>, or <apex:pieSeries>).