| 1 | Lamina linear; stipules absent; plants annual | Drosera indica |
| 1 | Lamina obovate, spathulate to almost circular; stipules present; plants perennial | 2 |
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| 2 | Leaves strictly in a basal rosette | 3 |
| 2 | Leaves born on the stem, clustered towards the apex | 4 |
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| 3 | Leaves with a narrow, flattened petiole, abruptly widening into the sub-circular lamina | Drosera burkeana |
| 3 | Leaves gradually widening into the spathulate lamina, seemingly without a petiole | Drosera dielsiana |
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| 4 | Petiole 2-5 times as long as the lamina, erect, glabrous or only sparsely pilose on both surfaces | Drosera affinis |
| 4 | Petiole 1-3 times as long as the lamina, reflexed, normally pilose on the undersurface | Drosera madagascariensis |
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