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Late eupatorium

Also known as: late-flowering throughwort, fall boneset

Eupatorium serotinum Michx.

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Late eupatorium leaf
Late eupatorium achenes
Late eupatorium leaves
Late eupatorium
Plant image
Late eupatorium inflorescence
Late eupatorium flowers
Late eupatorium habit
Late eupatorium inflorescence
Late eupatorium inflorescence
Late eupatorium
Late eupatorium habit
Late eupatorium
Late eupatorium leaves

Morphology

Stem
Erect, much branched above, short-hairy.
Leaves
Mostly opposite but uppermost sometimes alternate; stalk .4 to 1.2 inches long; blade narrowly lanceolate to narrowly ovate, 2 to 8 inches long, 3/5 to 4 inches wide, upper surface nearly glabrous; veins 3-5, conspicuous; margins toothed; tip gradually tapering to sharp point.
Inflorescence
Corymb, terminal; heads numerous.
Flower
Heads cylindric, 1/6 to 1/4 inch tall; bracts linear, pubescent, overlapping in 2-3 series, tips rounded or blunt; ray florets absent; disk florets 9-15, white.
Fruit
Achene, narrow, oblong to oval, longitudinally ribbed, black, tipped with white bristles, enclosing small seed.

Ecology

Habitat
Open moist woods in bottomlands, old pastures, feedlots, waste areas; moist soils; occasionally in drier, open places.
Distribution
East 1/2 of Kansas.

Practical Information

Uses
Native Americans boiled the flowers and took the tea to treat typhoid fever.
Quick Facts
Plant Type
Wildflower
Family
Asteraceae - Sunflower Family
Life Span
Perennial
Height
1.5-6.5 feet
Last Updated
2008-02-17
Color Groups
White, Green & Greenish White Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: August, September, October