File Variables Explanation GrowthData Allochtonous Empetrum Species Species names according to nomencalture referred in paper Treatment The weight (grams) of Emeptrum leaves added to soil Leaves The number of leaves per individual seedling Height The height (cm) of the leaves per individual seedling Growthform Species categorized as forb, grass or woody Habitat Snowbed or more general habitat preference Pot ID Unique ID for the pot in which several seedlings were growing Seedling ID Unique ID for the seedlings Germination data Allochtonous Empetrum Pot ID Unique ID for the pot in which several seedlings were growing Species Species names according to nomencalture referred in paper Treatment The weight (grams) of Emeptrum leaves added to soil Growthform Species categorized as forb, grass or woody Habitat Snowbed or more general habitat preference Sum germinated Sum of number of seeds germinated per pot Snowbed data Allochtonous Empetrum Snowbed Snowbed number Plot Plot number per snowbed Date Date Leaf density category "In categories 0= 0, 1=1-10, 2=10-20, 3=20-30, and 4=more than 30 Empetrum leaves 129 leaves)." Slope Slope (degrees) of snowbed Distance Distance (m) to nearest Empetrum heath Bioassay and Chemical data Allochtonous Empetrum Test ID Unique ID for the Emeptrum leaf-batch used for the bioassay and the chemical analysis Rootlength1 Rootlength of 1st lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength2 Rootlength of 2nd lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength3 Rootlength of 3rd lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength4 Rootlength of 4th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength5 Rootlength of 5th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength6 Rootlength of 6th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength7 Rootlength of 7th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength8 Rootlength of 8th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength9 Rootlength of 9th lettuce seedling in bioassay (10 seedlings per bioassay) Rootlength10 Rootlength of 10th lettuce seedling in bioassay (10 seedlings per bioassay) Leaf type treatment Allochtonous, autochtonous origin or no leaves Sampling location ID Unique ID for sampling location at Ifjordfjellet BatatasinIII Empetrum leaf content of Batatasin III (milligram per gram dry weight) Phenol Empetrum leaf content of Phenols (milligram per gram dry weight)