Eupatorium pilosum Walter

Rough boneset (en)

Species

Angiosperms > Asterales > Asteraceae > Eupatorium

Characteristics

Perennials, 30–100+ cm. Stems (from short rhizomes) single, sparsely branched distally, densely puberulent to pilose throughout. Leaves usually opposite (distal sometimes alternate); simple, sessile or subsessile; blades ± 3-nerved (distal to bases), elliptic, lanceolate, or lance-ovate, 30–90 × 20–45 mm (lengths mostly 2–2.5 times widths), bases rounded to rounded-cuneate, margins unevenly serrate, apices acute to attenuate, faces puberulent, gland-dotted. Heads in corymbiform arrays. Phyllaries 7–10 in 2–3 series, oblong to lance-oblong, 2–7 × 1–1.5 mm, apices (sometimes whitish) acuminate to acute, mucronate, abaxial faces puberulent, gland-dotted. Florets 5; corollas 3.5–4 mm. Cypselae 3–4 mm; pappi of 30–50 bristles 4–5 mm. 2n = 20, 30, 40.
More
Much like no. 19 [Eupatorium rotundifolium L.], but the lvs narrower, mostly lanceolate or lance-ovate to elliptic-ovate, mostly coarsely and unevenly toothed; upper lvs and main branches of the infl tending to be alternate; diploids and polyploids. Chiefly in wet soil; Mass. to Va. and Fla., w. to e. Ky., s. Tenn., and Miss. (E. verbenaefolium; E. rotundifolium var. saundersii)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 1.0
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-9
Soil humidity 5-7
Soil texture 1-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses medicinal
Edible -
Therapeutic use Breast Treatment (unspecified), Cold Remedy (unspecified), Laxative (unspecified), Respiratory Aid (unspecified), Tonic (unspecified), Urinary Aid (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Eupatorium pilosum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:206635-1
WFO ID wfo-0000089682
COL ID 3CKKP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Eupatorium pilosum Uncasia verbenaefolia Eupatorium verbenifolium Eupatorium verbenifolium var. verbenifolium Eupatorium rotundifolium var. saundersii Eupatorium lanceolatum