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Heracleum mantegazzianum (Giant Hogweed)
| Date | Action |
| Aug 08 2010 | Netty (13946) added "5 to 10 feet (1 1/2 to 3 m)" to Height (Maximum) |
| Aug 08 2010 | Netty (13946) added "Biennial" to Plant Types |
| Aug 08 2010 | Netty (13946) added "Invasive" to Plant Types |
| Aug 08 2010 | Netty (13946) added "Wildflower" to Plant Types |
| Aug 08 2010 | Netty (13946) added "Poisonous" to Plant Types |
