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Eupatorium hyssopifolium L.
Eupatorium hyssopifolium

Life   Plantae   Dicotyledoneae   Asteraceae   Eupatorium

Eupatorium hyssopifolium, Hyssop-leaved Boneset
© Copyright Sheryl Pollock 2011 · 8
Eupatorium hyssopifolium, Hyssop-leaved Boneset

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Eupatorium hyssopifolium, Hyssop-leaved Boneset
© Copyright Sheryl Pollock 2011 · 8
Eupatorium hyssopifolium, Hyssop-leaved Boneset
Eupatorium hyssopifolium
© Les Mehrhoff, 2008-2010 · 2
Eupatorium hyssopifolium

Eupatorium hyssopifolium
© Les Mehrhoff, 2008-2010 · 2
Eupatorium hyssopifolium
Eupatorium hyssopifolium, plant
© Kay Yatskievych, 2003 · 1
Eupatorium hyssopifolium, plant

Eupatorium hyssopifolium, Hyssop-leaved Boneset
© Copyright Sheryl Pollock 2011 · 1
Eupatorium hyssopifolium, Hyssop-leaved Boneset

Associates · map
FamilyScientific name @ source (records)
Aphididae  Uroleucon ( @ NCSU (8)
Apidae  Bombus fraternus @ BMEC_ENT (1)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Eupatorium hyssopifolium L. Hyssop-leaf Thoroughwort
Asteraceae — Aster family
Eupatorium hyssopifolium
Delaware Seashore State Park
August 2003

More information on this plant, from other sources.

Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Eupatorium hyssopifolium  L.

Hyssop-Leaved Thoroughwort

Eupatorium hyssopifolium plant

Family - Asteraceae

Stems - Erect, to 1 m, moderately to densely short-hairy.

Leaves - Mostly in whorls of 3-4, sessile, linear to oblong-elliptic, entire or with a few shallow teeth, often revolute, variously pubescent, gland-dotted, with single midvein. Nodes usually with fascicles of axillary leaves.

Eupatorium hyssopifolium node
Node of stem showing fascicled smaller leaves.

Inflorescence - Terminal panicles, +/- flat-topped.

Involucre - Narrowly cup-shaped, 4-6 mm long. Bracts with blunt tips.

Eupatorium hyssopifolium involucre Involucres.

Ray flowers - Absent.

Disk flowers - Disk florets 5 per head, with corollas 3.5-4.0 mm, often glandular, white. Styles exserted at anthesis.

Eupatorium hyssopifolium flowers

Flowering - August - November.

Habitat - Dry open ground surrounding upland sinkhole ponds.

Origin - Native to U.S.

Other info. - This showy species is rare in Missouri, being found in only a few counties in the eastern Ozark division. This species is common in the Coastal Plain of the eastern U.S. and has been slowly extending its range northward. The Missouri plants are considered to be var. calcaratum Fernald & B.G. Schub. Other infraspecific forms are recognized by many authors, however, there is significant intergradation. The species can hybridize with other members of the Eupatorium genus, giving apparently fertile forms with intermediate morphology.
Another rare species, E. cuneifolium Willd. is similar but this plant lacks the fascicles of small leaves in its nodes and has broader leaves. E. hyssopifolium also has bigger, brighter flowers.

Photographs taken in the Croatan National Forest, NC., 10-20-02.

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http://plants.usda.gov/core/profile?symbol=EUHY ---> https://plants.usda.gov/core/profile?symbol=EUHY
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Eupatorium hyssopifolium L.
hyssopleaf thoroughwort

Image of Eupatorium hyssopifolium

General Information
Symbol: EUHY
Group: Dicot
Family: Asteraceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Eupatorium thumbnails at the Plants Gallery

©Thomas G. Barnes. Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky . University Press of Kentucky. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 358. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .




Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Eupatorium L. – thoroughwort
Species Eupatorium hyssopifolium L. – hyssopleaf thoroughwort

Subordinate Taxa

The Plants Database includes the following 3 subspecies of Eupatorium hyssopifolium . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Eupatorium hyssopifolium</i>
L. var. <i>
Fernald & B.G. Schub.
Eupatorium hyssopifolium var. calcaratum
hyssopleaf thoroughwort