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ophis: ribbonleaf pondweed
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ophis: emergent spike shedding white pollen, ribbonleaf pondweed
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ophis: maturing spike, ribbonleaf pondweed
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ophis: maturing spike, ribbonleaf pondweed
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ophis: maturing spike, ribbonleaf pondweed
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ophis: keeled achenes, ribbonleaf pondweed
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ophis: white pollen fallen onto floating leaf, ribbonleaf pondweed
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ophis: floating leaves glossy and water-resistant on upper surface
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ophis: submersed leaves with enlarged cells along midrib, ribbonleaf pondweed
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ophis: ribbonleaf pondweed
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ophis: submersed leaves almost colorless
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ophis: floating leaves
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ophis: fruiting spike held above water
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ophis: some seeds look viable, others dark and shrunken
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ophis: ribbonleaf pondweed