
Naming
* ''Viola purpurea'' subsp. ''dimorpha''⤷ ''Viola purpurea'' subsp. ''geophyta''
⤷ ''Viola purpurea'' subsp. ''integrifolia''
⤷ ''Viola purpurea'' subsp. ''mesophyta''
⤷ ''Viola purpurea'' subsp. ''mohavensis''
⤷ ''Viola purpurea'' subsp. ''purpurea''
⤷ ''Viola purpurea'' subsp. ''quercetorum''
⤷ ''Viola purpurea'' subsp. ''venosa'', most widely distributed variety.
References:
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