Ethnobotanical databases serve as repositories of traditional knowledge (TK), either at international or local scales. By documenting plant species with traditional use, and most importantly, the applications and modes of use of such species, ethnobotanical databases play a role in the conservation of TK and also provide access to information that could improve hypothesis generation and testing in ethnobotanical studies. Brazil has a rich medicinal flora and a rich cultural landscape. Nevertheless, cultural change and ecological degradation can lead to loss of TK. Here, we present an online database developed with open-source tools with a capacity to include all medicinal flora of Brazil. We present test data for the Leguminosae comprising a total of 2078 records, referred to here as use reports, including data compiled from literature and herbarium sources. Unlike existing databases, Ewé provides tools for the visualization of large datasets, facilitating hypothesis generation and meta-analyses. The Ewé database is currently available at www.ewedb.com.

中文翻译：

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Ewé：用于存储和分析数据的基于Web的民族植物数据库。

民族植物学数据库可以作为国际或地方范围内传统知识（TK）的存储库。通过记录具有传统用途的植物物种，最重要的是记录此类物种的应用和使用方式，民族植物数据库在传统知识的保护中发挥了作用，还提供了可以改善民族植物研究中的假设产生和检验的信息。巴西拥有丰富的药用植物和丰富的文化景观。然而，文化变革和生态退化可能导致传统知识的丧失。在这里，我们介绍了一个使用开放源代码工具开发的在线数据库，该数据库可以包含巴西的所有药用植物。我们提供了豆科的测试数据，总共包含2078条记录，在此称为使用报告，包括从文献和植物标本室收集的数据。与现有的数据库不同，Ewé提供了用于可视化大型数据集的工具，从而促进了假设的生成和元分析。Ewé数据库当前可在www.ewedb.com上获得。