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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 | Asteranae
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| Order | Asterales
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| Family | Asteraceae
– sunflowers, tournesols |
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| Genus | Tonestus A. Nelson – serpentweed, tonestus |
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Direct Children: |
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| Species | Tonestus eximius (H.M. Hall) A. Nelson & J.F. Macbr.
– Lake Tahoe serpentweed, Tahoe goldenweed | |
| Species | Tonestus graniticus (Tiehm & L.M. Shultz) G.L. Nesom & D. Morgan
– granite serpentweed, granite goldenweed | |
| Species | Tonestus lyallii (A. Gray) A. Nelson
– Lyall's goldenweed, alpine goldenweed | |
| Species | Tonestus pygmaeus (Torr. & A. Gray) A. Nelson
– pygmy goldenweed | |
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