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Rhus hirta (Staghorn Sumac, Velvet Sumac)
| Date | Action |
| Aug 16 2008 | Netty (13946) added "5b (to -10 F / -23 C)" to Zones / Hardiness |
| Aug 16 2008 | Netty (13946) added "5a (to -15 F / -26 C)" to Zones / Hardiness |
| Aug 16 2008 | Netty (13946) added "4b (to -20 F / -29 C)" to Zones / Hardiness |
| Aug 16 2008 | Netty (13946) added "4a (to -25 F / -32 C)" to Zones / Hardiness |
| Aug 16 2008 | Netty (13946) added "Tree" to Plant Types |
