Allozymic Variation and Relationships within Viola sect. Viola (Violaceae) in IranMehrvarz · Polish Botanical Journal2016PDF417 KB
Cytogeographical Studies on Some Species of Viola Sect. Viola (Violaceae) from GreeceTiniakou · Botanic Garden & Botanical Museum Berlin-Dahlem BGBM1991PDF548 KB
A New and Noteworthy Hybrid of Viola (Violaceae) from Iwate, Northern Japan: Viola rostrata var. japonica × V. violacea var. makinoiActa Phytotaxonomica et GeobotanicaPDF1.3 MB
Four Nomenclatural Changes In Viola (violaceae)Little et al. · Botanical Research Institute of Texas, Inc.2010PDF305 KB
Keys to Louisiana Violets (Viola-Violaceae)Russell · Southwestern Association of Naturalists1961PDF358 KB
Viola Shiweii, a New Species of Viola (Violaceae) from Karst Forest in Guizhou, ChinaLi · PhytoKeys2022PDF7.3 MB
