Key to Tasmanian Dicots
1. Melicytus dentatus
2. Viola hederacea
3. V. hederacea flower
The Violaceae are represented in Tasmania by two very different genera, Melicytus (formerly known as Hymenanthera) and Viola. Melicytus dentatus is a montane shrub that grows in alpine and subalpine heaths, especially on the Central Plateau. It has small, sparse leaves, conspicuous spines and very small, solitary flowers. The Tasmanian flora includes both native and introduced species of Viola. These ground-hugging herbs have highly asymmetrical flowers with a large bottom petal.  
Key to genera
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