Viola betonicifolia subsp. betonicifolia
Content
Distribution
New Guinea only in extreme west present
As the species but in New Guinea only in extreme west.
Notes
The northernmost (including the type of subsp. nepalensis) and southernmost (including the type of subsp. betonicifolia) populations cannot be differentiated and intergrade continuously with the various leaf-forms present throughout much of Malesia, though there is a tendency for more definitely triangular cordate forms in the centre of the range. Confusion between this and the next subspecies may result partly from hybridization with V. inconspicua. Populations from N. Sumatra have a conspicuously narrow cuneate leaf which is 4-19 times as long as broad.