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| knob grass (Collinsonia canadensis) | |||
| knob-root (Collinsonia canadensis); stoneroot (Collinsonia canadensis); richweed (Collinsonia canadensis) | |||
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| knob grass (Collinsonia canadensis) | |||
| knob-root (Collinsonia canadensis); stoneroot (Collinsonia canadensis); richweed (Collinsonia canadensis) | |||