Reaction norms of stem characters of connected ramets (black filled circle and solid line), severed ramets (open circle and dashed line) and unrooted branches (grey solid circle) of A. philoxeroides (left panel) and P. canescens (right panel).

Values are means (±SE), n = 12 or 9. Different letters indicate significant differences (P<0.05) between branches and connected ramets (capitals) and between connected and severed ramets (non-capitals) (Bonferroni tests).