Erigeron bonariensis

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:ASTERACEAE
Species:Erigeron bonariensis L.
Common Name:South American Horseweed; Asthma Weed
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Erigeron
Species Erigeron bonariensis L. - South American Horseweed; Asthma Weed

Citation

Citation Erigeron bonariensis Linnaeus, Sp. Pl. 2: 863. 1753.
Basionym: **
Type: Without data (lectotype: LINN 994.11). Lectotypified by D'Arcy, in Woodson & Schery, Ann. Missouri Bot. Gard. 62; 1021. 1975.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Conyza chenopodioides Conyza chenopodioides de Candolle, Prodr. 5: 379. 1836.  
Conyza crispa Conyza crispa (Pourreau) Ruprecht, Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Petersbourg 14: 235. 1856.Erigeron crispus Pourreau 1788.  
Conyza erigeroides Conyza erigeroides de Candolle, Prodr. 5: 378. 1836.  
Conyza floribunda var. laciniata Conyza floribunda Kunth, var. laciniata Cabrera, Rodriguesia 21-22: 119. 1959. BRAZIL: Rio de Janeiro: Rio de Janeiro, 18 May 1959, Pereira 4890 (holotype: LP; isotype: RB).
Conyza naudinii Conyza naudinii Bonnet, Bull. Soc. Bot. France 25: 208. 1878.  
Conyza sinuata Conyza sinuata Elliott, Sketch Bot. S. Carolina 2: 323. 1823. SOUTH CAROLINA: Charleston Co.: Near Charleston,
Conyzella linifolia Conyzella linifolia (Willdenow) Greene, Fl. Francisc. 386. 1897.Erigeron linifolius Willdenow 1803. 
Erigeron contortus Erigeron contortus Desfontaines ex Persoon, Syn. Pl. 2: 432. 1807.  
Erigeron crispus Erigeron crispus Pourreau, Hist. & Mém. Acad. Roy. Sci. Toulouse 3: 318. 1788.  
Erigeron linearifolius Erigeron linearifolius Cavanilles, Anales Ci. Nat. 4: 89. 1801.  
Erigeron linifolius Erigeron linifolius Willdenow, Sp. Pl. 3: 1955. 1803. Cult. in Berlin,
Erigeron sordidus Erigeron sordidus Gillies ex Hooker & Arnott, Companion Bot. Mag. 2: 254. 1836.  
Erigeron transsilviancus Erigeron transsilvanicus Schur, Enum. Pl. Transsilv. 307. 1866. RUMANIA
Marsea bonariensis Marsea bonariensis (Linnaeus) V. M. Badillo, Bol. Soc. Venez. Ci. Nat. 10: 256. 1946.Erigeron bonariensis Linnaeus 1753. 
Conyza bonariensis Conyza bonariensis (L.) Cronquist, Bull. Torrey Bot. Club 70(6): 632. 1943. Without data (lectotype: LINN 994.11). Lectotypified by D'Arcy, in Woodson & Schery, Ann. Missouri Bot. Gard. 62; 1021. 1975.
Leptilon bonariense Leptilon bonariense (Linnaeus) Small, Fl. S.E. U.S. 1231, 1340. 1903.Erigeron bonariensis Linnaeus 1753. 
Leptilon linifolium Leptilon linifolium (Willdenow) Small, Fl. S.E. U.. 1231, 1340. 1903.Erigeron linifolius Willdenow 1803. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Baldwin, Barbour, Bullock, Butler, Calhoun, Chambers, Clarke, Conecuh, Covington, Crenshaw, Cullman, Dale, Elmore, Escambia, Henry, Houston, Jefferson, Lawrence, Limestone, Lowndes, Madison, Marengo, Mobile, Monroe, Montgomery, Pickens, Pike, Randolph, Tuscaloosa

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, AMAL, AUA, BRIT, JSU, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: 1887 - 2021

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
UWAL0043934 Baldwin 09 Jun 2001 Larsen, Harry S.
678		 UWAL
Erigeron bonariensis L.
BRIT90724 Covington 03 Sep 1969 Kral, Robert
36827		 BRIT
Conyza bonariensis (L.) Cronquist
JSU105972 Tuscaloosa 22 Jul 2000 Spaulding, Daniel D.
10807		 JSU
Conyza bonariensis (Linnaeus) Cronquist
TROY000015125 Chambers 15 Jun 2002 Spaulding, Daniel D.
11377		 TROY
Conyza bonariensis (Linnaeus) Cronquist
BRIT90721 Escambia 18 Aug 1968 Kral, Robert
32576		 BRIT
Conyza bonariensis (L.) Cronquist
TROY000001692 Dale 18 Jul 1997 Rundell, Hannelore
294		 TROY
Conyza bonariensis (Linnaeus) Cronquist
TROY000014625 Covington 04 Aug 2007 Diamond, Alvin R.
17882		 TROY
Conyza bonariensis (Linnaeus) Cronquist
BRIT90725 Clarke 01 Jun 1972 Kral, Robert
47070		 BRIT
Conyza bonariensis (L.) Cronquist
TROY000033079 Covington 19 May 2009 Hansen, Curtis J.
3990		 TROY
Conyza bonariensis (Linnaeus) Cronquist
BRIT90718 Houston 20 Aug 1981 Kral, Robert
67770		 BRIT
Conyza bonariensis (L.) Cronquist
USAM000002029 Mobile 10 Jul 1967 LeLong, Michel G.
4131		 USAM
Conyza bonariensis (Linnaeus) Cronquist
UNA00021705 Mobile 27 Mar 1965 Deramus, Rebecca
D 324		 UNA
Conyza bonariensis (L.) Cronq.
AMAL00021246 Baldwin 29 Mar 2013 Horne, Howard E.
2046		 AMAL
Conyza bonariensis (Linnaeus) Cronquist
TROY000033712 Calhoun 12 Sep 2008 Spaulding, Daniel D.
13067b		 TROY
Conyza bonariensis (Linnaeus) Cronquist
BRIT90754 Montgomery 12 Apr 1975 Kral, Robert
55005		 BRIT
Conyza bonariensis (L.) Cronquist
AUA000002442 Henry 7 Jul 1988 DIAMOND, JR., ALVIN R.
5149		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
BRIT90726 Baldwin 20 Aug 1968 Kral, Robert
32756		 BRIT
Conyza bonariensis (L.) Cronquist
AUA000024762 Covington 19 May 2009 HANSEN, CURTIS J.
3990		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
UNA00009762 Montgomery _ Jul 1881 Mohr, Charles
s.n.		 UNA
Conyza bonariensis (L.) Cronq.
UWAL0057806 Jefferson 04 Jun 2021 Spaulding, Daniel D.
16602		 UWAL
Erigeron bonariensis L.
UWAL0000537 Montgomery 14 May 2009 Diamond, Alvin R.
20699		 UWAL
Erigeron bonariensis Linnaeus
TROY000050708 Lawrence 16 Aug 2008 England, J. Kevin
894		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UWAL0047284 Autauga 28 Jul 2017 Parker, Matthew R.
1071		 UWAL
Erigeron bonariensis L.
UWAL0036510 Tuscaloosa 30 Sep 2017 England, J. Kevin
8502		 UWAL
Conyza bonariensis (Linnaeus) Cronquist
USAM000002028 Mobile 29 Aug 1966 LeLong, Michel G.
4038		 USAM
Conyza bonariensis (Linnaeus) Cronquist
UNA00025669 Mobile 18 Jul 1967 Deramus, Rebecca
D1075		 UNA
Conyza bonariensis (L.) Cronq.
ALNHS00000855 Monroe 5 Jul 2011 Barger, T. Wayne
RH-261		 ALNHS
Erigeron bonariensis L.
UNA00059368 Randolph 15 Jun 2002 Spaulding, Daniel D.
11390		 UNA
Conyza bonariensis (L.) Cronq.
AMAL00000339 Baldwin 10 Jun 2008 Spaulding, Daniel D.
12945		 AMAL
Conyza bonariensis (L.) Cronq.
AUA000040222 Monroe 5 Jul 2011 BARGER, T.WAYNE
RH-261		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
BRIT90720 Houston 04 Aug 1991 MacDonald, John R.
3045		 BRIT
Conyza bonariensis (L.) Cronquist
JSU105971 Lawrence 03 Aug 1996 Whetstone, R. David
18288		 JSU
Conyza bonariensis (Linnaeus) Cronquist
AUA000002487 Montgomery Jul 1904 ANDREWS, ELIZABETH F.
 AUA
ERIGERON BONARIENSIS L.
UWAL0012755 Baldwin 29 Mar 2013 Horne, Howard E.
2046		 UWAL
Erigeron bonariensis Linnaeus
TROY000001688 Covington 13 Aug 2000 Diamond, Alvin R.
11990		 TROY
Conyza bonariensis (Linnaeus) Cronquist
AMAL00015060 Baldwin 27 Oct 2008 Barger, T. Wayne
Perd-562		 AMAL
Conyza bonariensis (L.) Cronq.
UWAL0000535 Elmore 18 Jun 2005 Spaulding, Daniel D.
12278		 UWAL
Erigeron bonariensis Linnaeus
TROY000040978 Marengo 28 Jun 2011 England, J. Kevin
2987		 TROY
Conyza bonariensis (Linnaeus) Cronquist
BRIT90757 Mobile 02 Jun 1972 Kral, Robert
47138		 BRIT
Conyza bonariensis (L.) Cronquist
AMAL00012509 Elmore 18 Jun 2005 Spaulding, Daniel D.
12278		 AMAL
Conyza bonariensis (L.) Cronq.
UWAL0034089 Limestone 16 Aug 2015 Spaulding, Daniel D.
14413		 UWAL
Erigeron bonariensis Linnaeus
TROY000021226 Marengo 16 Sep 2008 England, J. Kevin
1134		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UNA00066380 Elmore 18 Jun 2005 Spaulding, Daniel D.
12278		 UNA
Conyza bonariensis (L.) Cronq.
BRIT90717 Houston 11 Aug 1974 Kral, Robert
53846		 BRIT
Conyza bonariensis (L.) Cronquist
AUA000002438 Crenshaw 4 Jun 1995 DIAMOND, JR., ALVIN R.
9583		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
UNA00006611 22 May 1887 Mohr, Charles
s.n.		 UNA
Conyza bonariensis (L.) Cronq.
BRIT90753 Tuscaloosa 22 Jul 2000 Spaulding, Daniel D.
10807		 BRIT
Conyza bonariensis (L.) Cronquist
AMAL00001670 Calhoun 12 Sep 2008 Spaulding, Daniel D.
13067b		 AMAL
Conyza bonariensis (L.) Cronq.
USAM000002027 Mobile 15 Aug 1980 LeLong, Michel G.
11302		 USAM
Conyza bonariensis (Linnaeus) Cronquist
AUA000002440 Crenshaw 8 Jul 1995 DIAMOND, JR., ALVIN R.
9636		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
AUA000002439 Conecuh 11 Aug 1991 DIAMOND, JR., ALVIN R.
7625		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
UWAL0013666 Mobile 14 Jul 2013 Keener, Brian R.
8047		 UWAL
Erigeron bonariensis Linnaeus
TROY000014626 Butler 26 Jul 2007 Diamond, Alvin R.
17821		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UWAL0044967 Bullock 20 Jul 2018 Horne, Howard E.
4575		 UWAL
Erigeron bonariensis Linnaeus
UWAL0012859 Marengo 28 Jun 2011 England, J. Kevin
2987		 UWAL
Erigeron bonariensis Linnaeus
ALNHS00009887 Madison 21 Aug 2024 Barger, T. Wayne
MSP-333		 ALNHS
Erigeron bonariensis L.
UNA00009490 Mobile 02 Aug 1965 Deramus, Rebecca
D642		 UNA
Conyza bonariensis (L.) Cronq.
AMAL00013515 Butler 26 Jul 2007 Diamond, Alvin R.
17821		 AMAL
Conyza bonariensis (L.) Cronq.
UNA00059382 Chambers 15 Jun 2002 Spaulding, Daniel D.
11377		 UNA
Conyza bonariensis (L.) Cronq.
AMAL00000652 Pickens 04 Jul 2008 Spaulding, Daniel D.
12997		 AMAL
Conyza bonariensis (L.) Cronq.
BRIT90722 Escambia 14 Aug 1983 Wilhelm, Gerould
11617		 BRIT
Conyza bonariensis (L.) Cronquist
BRIT90719 Houston 14 Jul 1998 MacDonald, John R.
11641		 BRIT
Conyza bonariensis (L.) Cronquist
JSU105970 Lawrence 03 Aug 1996 Whetstone, R. David
18288		 JSU
Conyza bonariensis (Linnaeus) Cronquist
TROY000001686 Barbour 26 Jul 2000 Diamond, Alvin R.
11888		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UWAL0002285 Pickens 04 Jul 2008 Spaulding, Daniel D.
12997		 UWAL
Erigeron bonariensis Linnaeus
TROY000034225 Lowndes 26 Nov 2011 Diamond, Alvin R.
22725		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UWAL0034714 Cullman 04 Jun 1995 Kral, Robert
84835		 UWAL
Erigeron bonariensis Linnaeus
TROY000044548 Pickens 04 Jul 2008 Spaulding, Daniel D.
12997		 TROY
Conyza bonariensis (Linnaeus) Cronquist
UNA00056061 Houston 14 Jul 1998 MacDonald, John R.
11641		 UNA
Conyza bonariensis (L.) Cronq.
AMAL00022699 Houston 28 May 2015 Barger, T. Wayne
DTP-184		 AMAL
Conyza bonariensis (L.) Cronq.
BRIT90756 Mobile 02 Sep 1970 Kral, Robert
41012		 BRIT
Conyza bonariensis (L.) Cronquist
BRIT90716 Mobile 27 Jun 1974 Kral, Robert
53566		 BRIT
Conyza bonariensis (L.) Cronquist
BRIT90723 Cullman 04 Jun 1995 Kral, Robert
84835		 BRIT
Conyza bonariensis (L.) Cronquist
UWAL0011421 Bullock 10 May 2012 Dykes, Bailee
641		 UWAL
Erigeron bonariensis Linnaeus
AMAL00024022 Madison 03 Aug 2017 Finzel, Brian
 AMAL
Conyza bonariensis (L.) Cronq.
AUA000002441 Henry 17 Jul 1988 DIAMOND, JR., ALVIN R.
5262		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
BRIT90755 Montgomery 01 May 1972 Kral, Robert
46117		 BRIT
Conyza bonariensis (L.) Cronquist
AMAL00002827 Randolph 15 Jun 2002 Spaulding, Daniel D.
11390		 AMAL
Conyza bonariensis (L.) Cronq.
UWAL0000534 Barbour 17 Jul 2008 Diamond, Alvin R.
19556		 UWAL
Erigeron bonariensis Linnaeus
AUA000002443 Pike 27 Jun 1995 DIAMOND, JR., ALVIN R.
9607		 AUA
CONYZA BONARIENSIS (L.) CRONQ.
TROY000048116 Autauga 28 Jul 2017 Parker, Matthew R.
1071		 TROY
Erigeron bonariensis L.
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