Key to Tasmanian Dicots
Isoetes (Isoetaceae)

Tasmania has five native species of Isoetes (quill worts). These are all aquatic or semi-aquatic plants with cylindrical or conical leaves arranged in grass-like tufts (though the leaves are often much thicker than those of most grasses). The spores occur in sporangia in the axils of the leaves.

Key to species 
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