 blue_thistle |
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| 1. | [ noun ] (botany) a coarse prickly European weed with spikes of blue flowers; naturalized in United States | |
| Synonyms: | blue_devil viper's_bugloss Echium_vulgare blueweed | |
| Related terms: | herb Echium | |
| Similar spelling: |
bull_thistle Bletia_striata |
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