Extinct - Extirpated - Endangered - Threatened - Vulnerable - Uncommon - Rare - Not at Risk
No plants in Ontario are known to be extinct
Blue-eyed Mary
Illinois Tick Trefoil
Scarlet Ammania
Toothcup
Gattinger's Agalinis
Skinner's Agalinis
Bluehearts
Juniper Sedge
Spotted Wintergreen
Pitcher's Thistle
White Prairie Gentian
Engelmann's Quillwort
Small-Whorled Pogonia
Large-Whorled
Pogonia
Slender Bush Clover
Purple Twayblade
Cucumber Tree
Red Mulberry
Eastern
Prickly Pear Cactus
Heart-Leaved Plantain
Pink Milkwort
Hoary Mountain-mint
Showy Goldenrod
Wood Poppy
Drooping Trillium
Nodding Pogonia
Small
White Lady's Slipper
Ginseng
Small-flowered Lipocarpha
Colicroot
American Chestnut
Blue Ash
Kentucky
Coffee Tree
Golden Seal
Goat's-rue
Deerberry
Bird's-foot Violet
White Wood Aster
False Hop Sedge
Round-leaved Greenbrier
American Water-willow
Blunt-lobed Woodsia
Willow Aster
Crooked-stemmed
Aster
Branched Bartonia
Indian Plantain
Wild Hyacinth
Dwarf Hackberry
American Columbo
Swamp Rose Mallow
False Rue-anemone
Dense Blazing Star
Eastern
Prairie White Fringed Orchid
Hill's Pondweed
Shumard Oak
Climbing
Prairie Rose
Few-flowered Club-rush
Broad Beech-fern
Hop Tree
Green Dragon
Provancher's Fleabane
Prairie
Smoke
Ram's-Head
Lady's-Slipper
Poke
Milkweed
White
Trout Lily
Lakeside
Daisy
Dwarf
Lake Iris (rare in Canada)
White
Fringed Orchid
Fringed
Puccoon
Yellow
Lotus (rare in Canada)
Green
Violet
False Mermaid
Short's Aster