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Bidens cernua L.
NODDING BUR-MARIGOLD
Nodding beggartick

Life   Plantae   Dicotyledoneae   Asteraceae   Bidens

Bidens cernua, Nodding Bur-maarigold
© Copyright Sheryl Pollock 2011 · 6
Bidens cernua, Nodding Bur-maarigold

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Bidens cernua
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Bidens cernua
Bidens cernua, Nodding Beggartick backside flower, Howard County, Md ---.
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Bidens cernua, Nodding Beggartick backside flower, Howard County, Md ---.

Bidens cernua, Nodding Beggartick, Howard County, Md ---.
© Copyright source/photographer · 5
Bidens cernua, Nodding Beggartick, Howard County, Md ---.
Bidens cernua
© Les Mehrhoff, 2008-2010 · 4
Bidens cernua

Bidens cernua
© Les Mehrhoff, 2008-2010 · 4
Bidens cernua
Bidens cernua
© Copyright Malcolm Storey 2011-2118 · 3
Bidens cernua

Bidens cernua
© Copyright Malcolm Storey 2011-2118 · 3
Bidens cernua
Bidens cernua
© Copyright Malcolm Storey 2011-2118 · 3
Bidens cernua

Bidens cernua, seed
© Copyright Seeds USID 2015 · 1
Bidens cernua, seed
Bidens cernua, leaf and flower
© Kay Yatskievych, 2003 · 1
Bidens cernua, leaf and flower

Associates · map
FamilyScientific name @ source (records)
Aphididae  Brachycaudus ( @ AMNH_PBI (8); NCSU_ENT (2)

Uroleucon ( @ NCSU (11)
Erysiphaceae  Erysiphe cichoracearum @ BPI (1)

Sphaerotheca castagnei @ BPI (3)

Sphaerotheca fuliginea @ BPI (1)

Sphaerotheca humuli @ BPI (12)
Mycosphaerellaceae  Cercospora bidentis @ BPI (1)

Cercospora megalopotamica @ BPI (1)

Cercospora umbrata @ BPI (5)
Peronosporaceae  Plasmopara halstedii @ BPI (2)
Protomycetaceae  Protomyces andinus @ BPI (1)

Protomyces gravidus @ BPI (1)

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&pull 20q v5.145 20180528: Error 500 Can't connect to pick18.pick.uga.edu:80 http://pick18.pick.uga.edu/mp/20p?see=I_USID76&res=320

Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Bidens cernua L. Nodding Tick-seed
Asteraceae — Aster family
Native
Bidens cernua
White Clay Creek State Park -- Big Pond area
September 2001

Guide to Bidens of Delaware

Search Google Delaware USDA

Photos copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Bidens cernua  L.

Nodding Bur Marigold, Sticktight

Bidens cernua plant

Family - Asteraceae

Habit - Annual forb, sometimes taprooted, occasionally emergent aquatic.

Stems - Loosely ascending to erect, to 80 cm, sometimes from a spreading base, occasionally rooting at the lower nodes, glabrous or rarely somewhat roughened with sparse, stiff, ascending hairs.

Bidens cernua stem Stem and leaf bases.

Leaves - Opposite, simple, sessile, often with bases fused around stem. Blades to 20 cm, oblong-lanceolate to oblanceolate, tapered at each end, sharply pointed, usually sharply toothed, glabrous.

Bidens cernua leaf1 Leaf adaxial.

Bidens cernua leaf2 Leaf abaxial.

Inflorescence - Solitary terminal heads or loose, open clusters.

Heads - Radiate or rarely discoid, nodding in fruit. Involucre with the outer series of 5-9 bracts 6-30 mm long, spreading to more commonly reflexed, mostly leaflike, narrowly lanceolate or linear, the margins entire but usually minutely roughened, the outer surface glabrous or sparsely short-hairy toward the base; the inner series of 6-9 bracts 4-10 mm long, lanceolate to narrowly ovate or ovate, glabrous. Chaffy bracts narrowly oblong, straw-colored to yellowish-tinged at the tip.

Bidens cernua head Flowering head.

Bidens cernua involucre2 Involucre

Ray florets - Sterile, 6-8 per head or rarely absent, the corolla usually showy, 10-15 mm long, yellow.

Disk flowers - Fertile, 40-100 per head, the corollas 3-4 mm long, yellow. Pappus of 4 awns mostly 2-4 mm long, these with downward-pointed barbs, erect at fruiting.

Bidens cernua florets Ray and disk florets, chaff.

Fruits - Achenes 4-8 mm long, narrowly wedge-shaped, with persistent barbed pappus awns, flattened and somewhat 4-angled in cross-section, the angles pale and somewhat thickened or sometimes narrowly winged, the faces sometimes with several faint longitudinal lines, dark brown to purplish black, glabrous or with sparse, short, pustular-based hairs.

Bidens cernua nodding Fruiting heads nodding.

Flowering - August - October.

Habitat - Wet soils, streambanks, ponds, sloughs, ditches, railroads.

Origin - Native to U.S.

Lookalikes - Other members of the genus Bidens , and more broadly, many other members of the Asteraceae have similar flowering heads.

Other info. - This species can be found scattered throughout most of Missouri, possibly excepting the Glaciated Plains division. It occurs throughout most of the northern 2/3 of the U.S. and into Canada. It is easy to identify by its wet habitat, showy yellow flower heads, and opposite leaves fused around the plant stem. The specific epithet cernua means "nodding," but the heads only nod consistently when in fruit. Steyermark and others have named numerous infraspecific entities, but these appear to represent ecological variants and are not currently recognized in Missouri.

Photographs taken along the shores of the Current River, Shannon County, MO., 9-20-03 (DETenaglia); also at Onondaga Cave State Park, Crawford County, MO, 9-25-2014, and Glassberg Conservation Area, Jefferson County, MO, 10-5-2018 (SRTurner).


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https://plants.usda.gov/java/profile?symbol=BICE ---> http://plants.usda.gov/core/profile?symbol=BICE
http://plants.usda.gov/core/profile?symbol=BICE ---> https://plants.usda.gov/core/profile?symbol=BICE
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You are here: Home / Plant Profile

Bidens cernua L.
nodding beggartick

Image of Bidens cernua

General Information
Symbol: BICE
Group: Dicot
Family: Asteraceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : AK   I
CAN   N
L48   N
Characteristics
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   

Images

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

Jennifer Anderson. United States, IA, Scott Co., Davenport, Nahant Marsh. 2002. Usage Requirements .

Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species . Midwest National Technical Center, Lincoln. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, NV. 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: 495. 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 .

slideshow

Synonyms

Symbol Scientific Name Other Common Names
BICEC Bidens cernua L. var. cernua nodding bur-marigold
BICED Bidens cernua L. var. dentata (Nutt.) B. Boivin
BICEE Bidens cernua L. var. elliptica Wiegand
BICEI Bidens cernua L. var. integra Wiegand
BICEM Bidens cernua L. var. minima (Huds.) Pursh
BICEO Bidens cernua L. var. oligodonta Fernald & H. St. John
BICER Bidens cernua L. var. radiata DC.
BIGL Bidens glaucescens Greene

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 Bidens L. – beggarticks
Species Bidens cernua L. – nodding beggartick

Subordinate Taxa

This plant has no children

Legal Status

U.S. Weed Information
Bidens cernua bur marigold nodding beggarticks nodding bur marigold sticktight This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains . Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.
WSWS Whitson, T.D. (ed.) et al.. 1996. Weeds of the West . Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming.

Wetland Status

Interpreting Wetland Status

North America
Alaska OBL
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (BICE)
Integrated Taxonomic Information System (BICE)
Integrated Taxonomic Information System (BICED)
Integrated Taxonomic Information System (BICEE)
Integrated Taxonomic Information System (BICEI)
Integrated Taxonomic Information System (BICEM)
Integrated Taxonomic Information System (BICEO)
Integrated Taxonomic Information System (BICER)
Integrated Taxonomic Information System (BIGL)
Jepson Interchange (University of California - Berkeley) (BICE)
Lady Bird Johnson Wildflower Center Native Plant Information Network (BICE)
University of Tennessee Herbarium (Distribution) (BICE)
University of Washington Burke Museum (BICE)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from Flora of North America
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Link to Flora of North America home
 
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FNA Vol. 21 Page 206, 208, 214 , 215 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Bidens

17. Bidens cernua Linnaeus, Sp. Pl. 2: 832. 1753.

Bident penché

Bidens cernua var. elliptica Wiegand; B. cernua var. integra Wiegand; B. cernua var. minima (Hudson) Pursh; B. cernua var. oligodonta Fernald & H. St. John; B. cernua var. radiata de Candolle; B. filamentosa Rydberg; B. glaucescens Greene; B. gracilenta Greene; B. minima Hudson; B. prionophylla Greene

Annuals, (2—)20—100(—400+) cm (stems sometimes rooting at proximal nodes). Leaves (rarely in 3s) sessile; blades lance-ovate or oblanceolate to lanceolate or linear, 40—100(—200+) × (2—)5—25(—45+) mm, bases cuneate to rounded, margins usually coarsely dentate to serrate, sometimes entire, sometimes ciliate, apices acute to acuminate, faces glabrous. Heads (erect or nodding at flowering, usually nodding in fruit) borne singly or in open, ± corymbiform arrays. Peduncles 10—40(—100+) mm. Calyculi of (3—)5—8(—10) spreading to reflexed, oblong to lance-linear, often ± foliaceous bractlets or bracts (3—)8—12(—25+) mm, margins usually ciliate, abaxial faces usually glabrous, bases sometimes hispidulous. Involucres ± hemispheric or broader, (3—)6—10 × (8—)12—20+ mm. Phyllaries 6—8+, ovate or lance-ovate to lanceolate, 2—10 mm. Ray florets usually 6—8, sometimes 0; laminae orange-yellow, 2—15(—18) mm. Disc florets (10—)40—100(—150+); corollas orange-yellow, 3—4 mm. Cypselae blackish or brown, usually ± flattened, sometimes ± 4-angled, ± cuneate, outer (3—)5—6+ mm, inner 4—8 mm, margins (± thickened or winged) retrorsely ciliate, apices ± truncate to convex, faces ± striate, glabrous or tuberculo-strigillose; pappi of (2—)4, ± erect, retrorsely barbed awns (1—)2—4 mm. 2 n = 24, 48.

Flowering late (Jul—)Aug—Sep(—Oct). Swamps, marshes, peat and sedge bogs, flood plains; 0—2300 m; Alta., B.C., Man., N.B., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Ala., Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe, Asia.

Bidens cernua is used medicinally to treat urinary-tract infections.

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

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Number of matches : 29
Query: SELECT * FROM img WHERE ready=1 and taxon like "Bidens cernua%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 5208 1611 2177 0054 [detail]
© 1995 Saint Mary's College of California

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 7269 3192 0001 0005 [detail]
1999 Larry Blakely

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 7269 3192 0001 0003 [detail]
1999 Larry Blakely

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 7269 3192 0001 0004 [detail]
1999 Larry Blakely

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 7269 3192 0001 0006 [detail]
1999 Larry Blakely

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 5208 1611 2177 0055 [detail]
© 1995 Saint Mary's College of California

Bidens cernua
Bidens cernua
Nodding Bur-marigold
ID: 7269 3192 0001 0007 [detail]
1999 Larry Blakely

Bidens cernua
Bidens cernua
ID: 0000 0000 0506 1272 [detail]
© 2006 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0506 1273 [detail]
© 2006 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0506 1274 [detail]
© 2006 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0506 1275 [detail]
© 2006 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0806 1008 [detail]
© 2006 George W. Hartwell

Bidens cernua
Bidens cernua
ID: 0000 0000 0806 1009 [detail]
© 2006 George W. Hartwell

Bidens cernua
Bidens cernua
ID: 0000 0000 0806 1010 [detail]
© 2006 George W. Hartwell

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1294 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1295 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1296 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1297 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1298 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 0408 1379 [detail]
© 2008 Louis-M. Landry

Bidens cernua
Bidens cernua
ID: 0000 0000 1008 0650 [detail]
© 2008 Steve Matson

Bidens cernua
Bidens cernua
ID: 0000 0000 1008 0651 [detail]
© 2008 Steve Matson

Bidens cernua
Bidens cernua
ID: 0000 0000 1008 0652 [detail]
© 2008 Steve Matson

Bidens cernua
Bidens cernua
ID: 0000 0000 0510 0025 [detail]
© 2010 Louis-M. Landry

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