The Willamette Valley (Oregon) Prairie Plant Trait Dataset

The Willamette Valley (Oregon) Prairie Plant Trait Dataset is a compilation of plant traits of species important in upland prairies, wetland prairies, vernal pools, and emergent wetlands, and in the restoration of prairies and wetlands of the Willamette Valley of Oregon. These species are also found widely throughout the Pacific Northwest. The dataset contains more than 6600 data points on 187 species. Three types of plant trait data are included in the dataset: quantitative, categorical, and text. Sources of plant trait data include direct measurements in the field or in the laboratory, or gathered from the published literature, including local floras, references books, and databases. Laboratory measurements include measurements of plant growth under standardized growth chamber conditions. The use of standardized conditions allows integration of results with those in the scientific literature. Standardized growth chamber conditions include specifications for germination media, transfer of germinates, pot size, growing media, nutrient solutions, growing illumination and temperatures, and dates of harvest. Growth chamber procedures followed the general recommendations of the Integrated Screening Programme (Hendry, G.A.F. and Grime, J.P. (eds) 1993. Methods in Comparative Plant Ecology: A Laboratory Manual. Chapman and Hall, London).