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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
Order: Asterales
Family: Asteraceae (Aster family)
Species: Achillea millefolium (Yarrow) (~ full ~)
Species: Achillea nobilis (Noble Yarrow) (~ brief ~)
Species: Ambrosia artemisiifolia (Common Ragweed) (~ photos ~)
Species: Ambrosia trifida (Great Ragweed) (~ photos ~)
Species: Arctium minus (Common Burdock) (~ photos ~)
Species: Artemisia absinthium (Wormwood) (~ photos ~)
Species: Artemisia ludoviciana (Western Mugwort) (~ photos ~)
Species: Artemisia vulgaris (Mugwort) (~ photos ~)
Species: Aster spp. (Asters) (~ photos ~)
Species: Carduus nutans (Nodding Thistle) (~ photos ~)
Species: Cirsium arvense (Canada Thistle) (~ photos ~)
Species: Cirsium vulgare (Bull Thistle) (~ photos ~)
Species: Conyza canadensis (Horseweed, Canadian Horseweed) (~ photos ~)
Species: Erigeron philadelphicus (Common Fleabane, Philadelphia Fleabane) (~ photos ~)
Species: Eupatorium perfoliatum (Boneset) (~ photos ~)
Species: Euthamia graminifolia (Flat-top Goldentop, Lance-leaved Goldenrod) (~ photos ~)
Species: Grindelia squarrosa (Gumweed, Tarweed) (~ photos ~)
Species: Helianthus strumosus (Woodland Sunflower) (~ photos ~)
Species: Helianthus tuberosus (Jerusalem Artichoke) (~ photos ~)
Species: Helianthus spp. (Sunflowers) (~ photos ~)
Species: Lactuca serriola (Prickly Lettuce) (~ photos ~)
Species: Leucanthemum vulgare (Oxeye Daisy) (~ photos ~)
Species: Matricaria discoidea (Pineapple-weed) (~ photos ~)
Species: Senecio vulgaris (Common Butterweed) (~ photos ~)
Species: Solidago spp. (Goldenrods) (~ photos ~)
Species: Sonchus sp. (Sow Thistle) (~ photos ~)
Species: Taraxacum officinale (Common Dandelion) (~ photos ~)
Species: Tragopogon pratensis (Yellow Goat's-beard, Meadow Salsify) (~ photos ~)
Order: Callitrichales
Order: Calycerales
Order: Campanulales
Order: Dipsacales
Order: Gentianales
Order: Lamiales
Order: Plantaginales
Order: Polemoniales
Order: Rubiales
Order: Scrophulariales
Order: Solanales
Subclass: Caryophyllidae
Subclass: Dilleniidae
Subclass: Hamamelidae
Subclass: Magnoliidae
Subclass: Rosidae


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