| creeping buttercup | Ranunculus repens |  |
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| celery leaved buttercup | Ranunculus sceleratus |  |
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| celandine | Ranunculus ficaria |  |
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| giant buttercup | Ranunculus acris |  |
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| marsh marigold | Caltha palustris |  |
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| small flowered buttercup | Ranunculus parviflorus |  |
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