Key to Tasmanian Dicots

1. Lythrum salicaria
2. L. hyssopifolia
3. L. hyssopifolia
4. L. salicaria

Two species of Lythrum (Loosestrife) occur in Tasmania, although whether they are native or not is open to debate). The species are erect herbs that grow in wet places. The flowers are distinctive – they have 6 petals and sepals, and either 6 or 12 stamens. However, the flower is deeply perigynous- although the petals and sepals are free, they are attached to a long tube that surrounds the ovary. The tube is formed from the floral disc and superficially resembles a fused calyx.
Key to species 
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