What is common to viola oxalis and commelina plants?

Viola, oxalis, and commelina plants share characteristics as members of flowering plants with diverse forms and habitats. They often thrive in similar environments, such as moist, shaded areas, and are known for their vibrant, ornamental flowers. Additionally, these plants can exhibit a range of growth habits, including herbaceous perennials and annuals, contributing to biodiversity in their respective ecosystems.