Data from: Antarctica may be vulnerable to invasion by Poa annua from a range of populations around the globe

Dataset comprising of morphological features of Poa annua specimens from different populations, that were grown in common garden type of experiment in four different simulations (2 soil types and 2 climate types in a cross-design)Data was prepared and used for publication "Are certain populations of invasive Poa annua better suited to invading Antarctica? A common garden comparison of populations from four continents" by Rudak A, Galera H and Wódkiewicz M. 2025.Table "All measurments common garden" is main raw data file that includes all measuments that were done as a part of the experiment. Plants were grown for 4 months in four different variantsVariants:Ident_pop - There are nine different populations (8 populations from seeds collected in 2015 and one population from Antarctica from seeds collected in 2010)Soil - there are two different soil types used: sA - Antarctic soil which is kind of a gravel, nutrient low soil, and sO - Optimal soil for the species - garden soil was used for thisClimate - there are two climate simulations cA - Antarctic climate and cO optimal climateMeasured traits:height - height of aboveground part of the plant (in cm)dry_above_biomass - weight of dried aboveground biomass (in g)biomass_allo - Is a biomass allocation ratio between dry aboveground and dried belowground biomass of the plantplant_arch - is a ratio of height of the plant to largest chord of ellipsoid being an approximation of plant's shape from above view - it was measured using photography analyzed in ImageJ software.shoots - number of all shoots of the plantflower_day - first day of observed flowering counting from germination