Kingdom: Plantae (plants)
Division: Anthocerotophyta (hornworts)
Division: Bryophyta (mosses)
Division: Hepatophyta (liverworts)
Subkingdom: Tracheobionta (vascular plants)
Division: Equisetophyta (horsetails)
Division: Lycopodiophyta (ferns)
Division: Psilophyta (whisk-ferns)
Division: Pteridophyta (ferns)
Superdivision: Spermatophyta (seed plants)
Division: Coniferophyta (conifers)
Division: Cycadophyta (cycads)
Division: Ginkgophyta (ginkgo)
Division: Gnetophyta (mormon-teas and other gnetophytes)
Division: Magnoliophyta (flowering plants)
Class: Liliopsida (monocotyledons)
Class: Magnoliopsida (dicotyledons)
Subclass: Asteridae
Subclass: Caryophyllidae
Subclass: Dilleniidae
Subclass: Hamamelidae
Subclass: Magnoliidae
Subclass: Rosidae
Order: Apiales
Order: Celastrales
Order: Cornales
Order: Euphorbiales
Order: Fabales
Order: Geraniales
Order: Haloragales
Order: Linales
Order: Myrtales
Order: Podostemales
Order: Polygalales
Order: Proteales
Order: Rafflesiales
Order: Rhamnales
Order: Rhizophorales
Order: Rosales
Order: Santalales
Order: Sapindales
Family: Aceraceae (Maple family)
Family: Anacardiaceae (Sumac family)
Species: Rhus hirta (Staghorn Sumac) (~ photos ~)
Species: Rhus glabra (Smooth Sumac) (~ photos ~)
Species: Toxicodendron radicans (Poison Ivy) (~ full ~)
Family: Burseraceae (Frankincense family)
Family: Hippocastanaceae (Horse-chestnut family)
Family: Meliaceae (Mahogany family)
Family: Rutaceae (Rue family)
Family: Sapindaceae (Soapberry family)
Family: Simaroubaceae (Quassia family)
Family: Staphyleaceae (Bladdernut family)
Family: Zygophyllaceae (Creosote-bush family)