\begin{figure}[H]
\centering
\begin{tikzpicture}[scale=0.7]
\Tree [.Appl [.DP ] [.V [.DP ] [.v ] ]]
\end{tikzpicture}
\end{figure}
is giving me the above picture:
But, what I really want is left skewed DP node without the v node. I want to eliminate the pixelated part.