The segetal flora of winter crops includes mostly native or archaeophyte annual species that are often strong specialists of their habitats. Threatened by the intensification of agriculture, segetal flora is particularly valuable from a perspective of biodiversity conservation and evolution. Moreover, it contributes to maintain biodiversity in agroecosystems and provides several ecosystem services. The dataset here described was set up to provide the first inventory of the segetal flora of Italian winter cereal crops and allied crop types, the latter including flax and autumn-sown legumes. It includes 24,676 georeferenced occurrence data deriving from 1,240 floristic and phytosociological relevés. The data were collected from the greater part of Italian territory, in a temporal range spanning from 1946 to 2018.

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意大利的植物区系：来自冬季谷物和相关农作物类型的相关数据集

冬季农作物的植物区系主要包括一年生的原生植物或古生植物，通常是其栖息地的强大专家。受农业集约化的威胁，从生物多样性保护和进化的角度看，植物群落特别有价值。此外，它有助于维持农业生态系统中的生物多样性并提供多种生态系统服务。建立此处描述的数据集是为了提供意大利冬季谷物作物和相关作物类型的植物区系的第一个清单，后者包括亚麻和秋播的豆类。它包括来自1,240种植物和植物社会学相关性的24,676个地理参考发生数据。数据是从1946年至2018年的一段时间内从意大利大部分地区收集的。