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Keywords:

  • drought;
  • Erodium;
  • fecundity;
  • Geraniaceae;
  • life history strategy

Abstract Erodium cicutarium (L.) L'Hérit. ex Aiton (Geraniaceae) from temperate Mediterranean Eurasia is naturalized across large areas of arid and semi-arid Australia to which Erodium crinitum Carolin is native. plant size, leaf and bud numbers and fruit/plant biomass ratio were significantly lower under drought, flower and fruit number, fruit size and total mass were unaffected. In contrast, E. crinitum was largely unaffected by the drought conditions, showing only an increase in the fruit/plant biomass ratio.