Mammoth Cave Area Flora
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SPRING Yellow-Orange Fls
SPRING Blue/purple fls
SPRING White Flowers
SUM-Fall blue, purple
SUM-FALL yel. orange
SUM-FALL white fls
ALL Red, pink fls
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Invasive species
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Group ID guides
Agrimony
Asters
Blazing stars
Goldenrods
Knotweeds & smartweeds
Ruellia
St John's Wort
Sunflowers and similar
Tick-trefoils
Violets
Christmas fern
(Polystichum acrostichoides)
Our most common fern, so named because it is evergreen. Close examination shows that each leaflet has a small spur near the stem. Leaflets are occasionally toothed. MC (Dryopteridaceae)