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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 | Psilactis A. Gray – tansyaster, psilactis |
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Direct Children: |
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| Species | Psilactis asteroides A. Gray
– New Mexico tansyaster, New Mexico tansy-aster, hoary aster | |
| Species | Psilactis brevilingulata Sch. Bip. ex Hemsl.
– Trans-Pecos tansyaster | |
| Species | Psilactis gentryi (Standl.) D. Morgan
– Mexican tansyaster, Mexican tansy-aster | |
| Species | Psilactis heterocarpa (R.L. Hartm. & M.A. Lane) D. Morgan
– San Patricio tansyaster | |
| Species | Psilactis tenuis S. Watson
– slender tansyaster | |
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