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Helianthus angustifolius L.
SWAMP SUNFLOWER
Life   Plantae   Dicotyledoneae   Asteraceae   Helianthus

Helianthus angustifolius, Narrowleaf Sunflower
© Copyright Sheryl Pollock 2011 · 8
Helianthus angustifolius, Narrowleaf Sunflower

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Helianthus angustifolius
© Copyright Bobby Hattaway 2011 · 5
Helianthus angustifolius
Helianthus angustifolius
© Copyright Bobby Hattaway 2011 · 5
Helianthus angustifolius

Helianthus angustifolius
© Copyright Bobby Hattaway 2011 · 5
Helianthus angustifolius
Helianthus angustifolius, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, inflorescence - whole - unspecified

Helianthus angustifolius, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, inflorescence - whole - unspecified
Helianthus angustifolius, inflorescence - ventral view of flower + perianth
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, inflorescence - ventral view of flower + perianth

Helianthus angustifolius, inflorescence - ventral view of flower + perianth
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, inflorescence - ventral view of flower + perianth
Helianthus angustifolius, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, leaf - basal or on lower stem

Helianthus angustifolius, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, stem - showing leaf bases
Helianthus angustifolius, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, stem - showing leaf bases

Helianthus angustifolius, leaf - on upper stem
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, leaf - on upper stem
Helianthus angustifolius, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, stem - showing leaf bases

Helianthus angustifolius, leaf - margin of upper + lower surface
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, leaf - margin of upper + lower surface
Helianthus angustifolius, fruit - lateral or general close-up
© Copyright Steve Baskauf, 2002-2011 · 4
Helianthus angustifolius, fruit - lateral or general close-up

Hosts · map
FamilyScientific name @ source (records)
_  2007-09-29 19 @ (1)

2007-09-29 19 @ (1)

Associates · map
FamilyScientific name @ source (records)
Aphididae  Uroleucon ( @ NCSU (4)
Apidae  Melissodes tincta @ BBSL (2)
Membracidae  Entylia carinata @ NCSU (1)
Miridae  Lopidea confluenta @ NCSU_ENT (4)
Pucciniaceae  Puccinia helianthi @ BPI (7)

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Following modified from Plants Database, United States Department of Agriculture
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https://plants.usda.gov/java/profile?symbol=HEAN2 ---> http://plants.usda.gov/core/profile?symbol=HEAN2
http://plants.usda.gov/core/profile?symbol=HEAN2 ---> https://plants.usda.gov/core/profile?symbol=HEAN2
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Helianthus angustifolius L.
swamp sunflower

Image of Helianthus angustifolius

General Information
Symbol: HEAN2
Group: Dicot
Family: Asteraceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
Characteristics
Data Source and Documentation
About our new maps
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   

Images

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

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species . South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species . South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

©Thomas G. Barnes. Usage Requirements .

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

Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, CA, Butte Co., Chico. Usage Requirements .

©Ted Bodner. James H. Miller and Karl V. Miller. 2005. Forest plants of the southeast and their wildlife uses. University of Georgia Press., Athens. Provided by University of Georgia Press . Scanned by Forestry Images . Usage Requirements .

©Jeff McMillian. Provided by Almost Eden . United States, LA. Usage Requirements .

©Lawrence S. Gilliam. United States, NC, Guilford Co., meadow. September 12, 2004. Usage Requirements .

©Jim Stasz. 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: 479. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .

slideshow

Synonyms

Symbol Scientific Name
HEANP Helianthus angustifolius L. var. planifolius Fernald

Classification

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 Helianthus L. – sunflower
Species Helianthus angustifolius L. – swamp sunflower

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Illinois narrow-leaved sunflower Threatened
New York swamp sunflower Threatened
Pennsylvania swamp sunflower Extirpated

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FACW
Eastern Mountains and Piedmont FACW
Great Plains FAC
Midwest FACW
Northcentral & Northeast FACW

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (HEAN2)
Integrated Taxonomic Information System (HEAN2)
Integrated Taxonomic Information System (HEANP)
Lady Bird Johnson Wildflower Center Native Plant Information Network (HEAN2)
USF Atlas of Florida Vascular Plants (HEAN2)
University of Tennessee Herbarium (Distribution) (HEAN2)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Miller Low Low Low

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Miller

Sources

Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses . Southern Weed Science Society.

Description of Values

Value Class Food Cover
High Average 25-50% of diet Regular source of cover
Low 5-10% of diet Infrequently used as cover
Minor 2-5% of diet Sparsely used as cover
Moderate Average 10-25% of diet Occasional source of cover


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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 21 | Asteraceae | Helianthus

37. Helianthus angustifolius Linnaeus, Sp. Pl. 2: 906. 1753.

Swamp sunflower

Helianthus angustifolius var. planifolius Fernald

Perennials , 50—150+ cm (with crown buds, rhizomes absent or poorly developed). Stems erect, usually ± hairy. Leaves mostly cauline; opposite or alternate; sessile or subsessile; blades (3-nerved near bases) narrowly lanceolate to linear, 8—15 × 0.15—0.5(—1) cm, bases cuneate , margins entire (revolute, abaxial face sometimes obscured by rolled margins), abaxial faces strigose to hispid or hirsute, sometimes (adaxial not) gland-dotted. Heads 3—16. Peduncles 5—15 cm. Involucres shallowly hemispheric, 10—20 mm diam. Phyllaries 25—32 (loose), lanceolate, 4—9 × 1—2 mm, apices acute to slightly acuminate, abaxial faces usually scabrous, rarely glabrous, usually gland-dotted. Paleae (oblanceolate) 5.5—6.5 mm, entire or ± 3-toothed (apices purplish, mucronate, gland-dotted). Ray florets 10—20; laminae 10—20 mm (abaxial faces gland-dotted). Disc florets 75+; corollas 4—4.5 mm, lobes yellow; anthers dark brown or black, appendages dark (style branches usually yellow). Cypselae 2—3 mm, glabrate; pappi of 2 aristate scales 1.5—2.1 mm. 2 n = 34.

Flowering late summer—fall. Open to shaded, usually moist places; 10—700 m; Ala., Ark., Fla., Ga., Ind., Iowa, Ky., La., Md., Miss., Mo., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va.

The distal parts of Helianthus angustifolius are identical in appearance to those of H. simulans ; plants of the latter are taller (200+ cm) and more robust. The leaves are not only narrower in H. angustifolius but also tend to be more strongly revolute (abaxial faces sometimes scarcely visible).

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Helianthus+angustifolius&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Helianthus+angustifolius&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 4
Query: SELECT * FROM img WHERE ready=1 and taxon like "Helianthus angustifolius%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Helianthus angustifolius
Helianthus angustifolius
Swamp Sunflower
ID: 0000 0000 1006 0337 [detail]
© 2006 Matt Below

Helianthus angustifolius
Helianthus angustifolius
Swamp Sunflower
ID: 0000 0000 1012 1598 [detail]
© 2012 Richard Spellenberg

Helianthus angustifolius
Helianthus angustifolius
Swamp Sunflower
ID: 0000 0000 1012 1599 [detail]
© 2012 Richard Spellenberg

Helianthus angustifolius
Helianthus angustifolius
Swamp Sunflower
ID: 0000 0000 1012 1600 [detail]
© 2012 Richard Spellenberg

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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