Yarrow
Achillea millefolium (Achillea lanulosa)
Aromatic wildflower with flat lacy inflorescence.
Habit: native and introduced perennial; usually … read more
Hardheads
Acroptilon repens (Centaurea repens)
Introduced. An invasive, much-branched, upright-growing weed that spreads by black creeping roots.read more
A low woodland plant with delicate stalks of flowers rising above an array of large spade-shaped lea… read more
Introduced. A leafy, woody-based herb or small shrub that bears rounded clusters of white flower hea… read more
White Snakeroot
Ageratina altissima (Eupatorium rugosum)
Solitary or clustered firm stems bear flat-topped clusters of small white fragrant flowerheads compo… read more
From a basal cluster of leaves grow several leafless stalks with milky sap, topped by coppery-orange… read more
Several leafless stalks, each with a yellow flower head at the top, grown from a basal rosette of li… read more
This cool-season annual grows from a winter rosette, becoming slightly branched and reaching a heigh… read more
Native herbaceous annual.
Habit: many-branched, coarse, bushy; hairy stems, green to red; to 1-3 ft… read more
Native annual; herbaceous or subshrub.
Habit: erect and coarse, with rough, hairy stems.
Height: … read more
Climbing Aster
Ampelaster carolinianus (Aster carolinianus)
Native perennial shrub or vine. May be deciduous or evergreen.
Leaf: clasping, 1-3" long x 1/2" wid… read more
A bushy, clump-forming, somewhat weedy plant bearing small white flowers.
Habit: native short-live… read more
A woolly, clump-forming plant of mountain meadows.
Habit: native perennial herb; woody base.
Heigh… read more
Native herbaceous perennial; spreads by runner; usually forms dense colonies.
Habit: small and erec… read more
Nuttall's Pussytoes
Antennaria parvifolia (Antennaria aprica)
From a small, grayish basal rosette rises an erect, sparsely-leaved flower stalk with clusters of sm… read more
A low, colony-forming plant, spreading by runners, with basal leaves and erect stems, each bearing a… read more
Pink or cream flowers on slender stalk above open gray-green mat.
Habit: native perennial herb; spr… read more
This variable perennial forms solid patches on dry soil and makes an interesting ground cover. The … read more
Mayweed
Anthemis cotula
Introduced annual herb.
Habit: erect, branched stems, green becoming red; holding ferny foliage wit… read more
Woolly Daisy
Antheropeas wallacei (Eriophyllum wallacei)
A tiny, gray, woolly tufted plant with small golden-yellow flower heads.
Habit: native annual herb;… read more
Arkansas Dozedaisy or Lazy Daisy is a bushy annual, 2-18 in. tall, resembling an aster. Its white, … read more
Non-native herbaceous biennial.
Habit: large, erect, bushy, 1-5' ht., with a deep taproot.
Leave… read more
Alpine Arnica
Arnica angustifolia ssp. angustifolia (Arnica alpina)
A variable, tufted plant with a rosette of lance-shaped leaves and a single, slender stem rising 4-1… read more
Native, perennial herb; may spread by rhizome to form large colonies.
Habit: upright stems, usually… read more
Native perennial herb, variable in appearance; spreads by rhizome.
Habit: hairy stem(s) rising from… read more
Herbaceous perennial.
Habit: spreading, mat-forming, with 1-3 unbranched erect stems; may be faintl… read more
Mugwort
Artemisia vulgaris
Introduced perennial herb or subshrub; spreads by rhizome or self-seeds; may form large colonies.
… read more
A smooth, gray-green plant with a flat rosette of basal leaves and tall spindly stems, openly branch… read more
An upright, white hairy perennial, 4-16 in. tall. Yellow radiate flowers occur at the end of long s… read more
Native herbaceous annual, biennial or short-lived perennial.
Habit: clumping, with showy gold flowe… read more
Native herbaceous annual, biennial or perennial. Taproot. Yellow daisy-like flower.… read more
The leaves of this species are deeply segmented, appearing in basal tufts from a woody taproot with … read more
Native herbaceous perennial. Hairy, usually leafless stems 8-24" tall grow from a basal rosette.
L… read more
Exotic herbaceous perennial; sometimes evergreen; spreads by rhizome, may form large colonies.
Habi… read more
Native herbaceous perennial.
Habit: mounded, coarse, clumping.
Height: 4-48 in (10-120 cm).
Leaf:… read more
Native herbaceous perennial.
Habit: low tuft of gray-green foliage, surrounds tall hairy stems, hol… read more
Herbaceous annual or short-lived perennial. Taproot.
Habit: erect, 1-5' tall.
Leaves: opposite, … read more
Slender, leafy, much-branched stems bearing several yellow, daisy-like flower heads.
Habit: native … read more
Numerous yellow flower heads nod increasingly as the flowers mature.
Habit: native annual herb with… read more
Habit: introduced annual (rarely perennial) herb; upright, square stem; forms dense colonies.
Heigh… read more
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