Dry open woods, exposed grassy places and rocky crevices at low elevations (Pojar and MacKinnon, 1994).
Sandy, well drained soil.
Nitrogen medium sites (Klinka et al., 1995).
Neutral to slightly acid.
Dry to moderately dry.
Full sun to light shade.
Climax in dry open forests and on rocky outcrops. Occasional in early seral communities (Klinka et al., 1995).
Plays an important ecological function.