Photo of several decurrent false asters in bloom

    Decurrent False Aster

    Boltonia decurrens
    exclamation mark

    Endangered

    Photo of New England aster plants with flowers

    New England Aster

    Symphyotrichum novae-angliae (formerly Aster novae-angliae)
    No photo available

    Philadelphia Fleabane

    Erigeron philadelphicus
    Photo of dense stand of prairie blazing star or gayfeather at Pawnee Prairie

    Prairie Blazing Star (Gayfeather)

    Liatris pycnostachya
    fork and knife icon

    Edible

    Photo of tall thistle plants with flowers

    Tall Thistle

    Cirsium altissimum
    fork and knife icon

    Edible

    Photo of cut-leaved teasel showing flowerhead and joined, cuplike leaves.

    Teasels

    Dipsacus fullonum and D. laciniatus
    invasive icon

    Invasive