ANOVA for effects of litter effects on plant performance.

Litter effects from exotic versus native plant species (Litter) on germination or (in the case of Rorippa) sprouting rates and plant biomass production as well as the differences between exotic and native plant species (Plant) within three genera (Artemisia, Rorippa, and Senecio). 1Numerator d.f. is 1 for all factors. Denominator d.f. is 16, except for Rorippa-pair where denominator d.f. is 14.