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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 | Caryophyllanae
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| Order | Caryophyllales
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| Family | Polygonaceae
– knotweed, renouées, buckwheat |
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| Genus | Chorizanthe R. Br. ex Benth.
– spineflower |
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| Species | Chorizanthe brevicornu Torr. – sagebrush chorizanthe, brittle spineflower |
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Direct Children: |
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| Variety | Chorizanthe brevicornu var. brevicornu Torr.
– brittle spineflower | |
| Variety | Chorizanthe brevicornu var. spathulata (Small ex Rydb.) C.L. Hitchc.
– brittle spineflower | |
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