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| Kingdom | Plantae
– plantes, Planta, Vegetal, plants |
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| Subkingdom | Viridiplantae
– green plants |
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| Infrakingdom | Streptophyta
– land plants |
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| Superdivision | Embryophyta
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| Division | Tracheophyta
– vascular plants, tracheophytes |
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| Subdivision | Spermatophytina
– spermatophytes, seed plants, phanérogames |
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| Class | Magnoliopsida
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| Superorder | Lilianae
– monocots, monocotyledons, monocotylédones |
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| Order | Commelinales
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| Family | Pontederiaceae
– pickerel-weed |
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| Genus | Pontederia L.
– pontederia, pickerel-weed, pickerelweed |
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| Subgenus | Pontederia (Pontederia) L. |
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Direct Children: |
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| Species | Pontederia cordata L.
– pickerelweed | |
| Species | Pontederia ovalis Mart. ex Schult. & Schult. f.
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| Species | Pontederia parviflora Alexander
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| Species | Pontederia rotundifolia L. f.
– tropical pickerelweed | |
| Species | Pontederia sagittata C. Presl
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| Species | Pontederia subovata (Seub.) Lowden
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| Species | Pontederia triflora (Endl. ex Seub.) G. Agostini et al.
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