File Size: 86 KB
Erechtites hieraciifolius   (L. ) Raf. ex  DC.
Leavenworth County, Kansas
Height: 12-80 inches
Family: Asteraceae - Sunflower Family
Flowering Period:   August, September
Also Called: Pilewort.
Stems: 1 or 2, erect, glabrous or floccose-tomentose.
Leaves: Basal and cauline, alternate, basal usually withering before flowering, not prickly or spiny, upper gradually reduced; petioles absent or short; blades lanceolate to narrowly ovate, 2 to 8 inches long, 3/5 to 3 inches wide, base wedge-shaped to auricled, margins entire to serrate or weakly pinnately lobed.
Inflorescences: Heads, 2 to 20(-40) in corymb-like arrays; involucres urn-shaped to obconic, .4 to .7 inch; calyculate bractlets 4 to 12; phyllaries usually 21 in 1 series, linear, .4 to .6 inch, tips green, acuminate.
Flowers: Ray florets 0; peripheral florets pistillate; corolla white to yellowish white, narrowly tubular 4-5-lobed, 3 outer teeth much longer than 2 inner; disk florets 3 to 100, bisexual, fertile; corolla whitish to yellowish white.
Fruits: Achenes cylindric or tapering slightly to base, 5-angled, 10 to 20-ribbed, 1/10 to 1/8 inch, glabrous or finely pubescent between the nerves; pappus of 60 to 120 white, obscurely barbellate bristles 2/5 to 1/2 inch long.
Habitat: Moist woods and thickets, prairie ravines, gardens and flower beds, moist disturbed sites
Distribution: East 1/3 of Kansas, more common in southeast
Origin: Native
Comments: Erechtites, is an ancient name for a species of Senecio.

American burnweed
90 KB
McPherson County, Kansas
American burnweed inflorescence
53 KB
Leavenworth County, Kansas
American burnweed
135 KB
Leavenworth County, Kansas
American burnweed leaves
130 KB
Leavenworth County, Kansas
American burnweed leaves
73 KB
Leavenworth County, Kansas
American burnweed fruiting
160 KB
Ellsworth County, Kansas