Bidens pilosa

Family:ASTERACEAE
Species:Bidens pilosa L.
Common Name:Spanish needles
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:Bidens pilosa is part of the "pilosa complex" which includes neotropical taxa some of which have expanded their range into the SE US. True Bidens pilosa (in the strict sense) produces three awns on the cypselae and does not produce rays, or if so, they are 3 mm long or shorter. The other species in our flora is Bidens alba, which typically has substantial white rays (1 cm or more long) and two awns on the cypselae. Some specimens have been observed to have the rays and with third reduced awn on the fruit. This may indicate some introgression among both of the non-native taxa. Several specimens here and under B. alba need to be reevaluated and assigned to the correct taxon accordingly.--B. Keener
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 Bidens
Species Bidens pilosa L. - Spanish needles

Citation

Citation Bidens pilosa Linnaeus, Sp. Pl. 2: 832. 1753.
Basionym: **
Type: Without data (lectotype: LINN 975.8). Lectotypified by D'Arcy, in Woodson & Schery, Ann. Missouri Bot. Gard. 62: 1178. 1975.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Bidens adhaerescens Bidens adhaerescens Vellozo, Fl. Flumin. 348. 1829 ("1825"). BRAZIL:
Bidens californica Bidens californica de Candolle, Prodr. 5: 599. 1836. CALIFORNIA: Without data, Douglas 56 (holotype: G-DC; isotype: G).
Bidens hirsuta Bidens hirsuta Nuttall, Trans. Amer. Philos. Soc., ser. 2. 7: 369. 1841, non Swartz 1788.  
Bidens leucantha var. pilosa Bidens leucantha Willdenow, var. pilosa (Linnaeus) Grisebach, Cat. Pl. Cub. 155. 1866.Bidens pilosa Linnaeus 1753. 
Bidens pilosa forma discoidea Bidens pilosa Linnaeus, forma discoidea Schultz Bipontinus, in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2(2)): 242. 1844, nom. inadmiss.Bidens pilosa Linnaeus 1753. 
Bidens pilosa subvar. discoidea Bidens pilosa Linnaeus, subvar. discoidea (Schultz Bipontinus) Pitard, in Pitard & Proust, Iles Canaries 226. 1909, nom. inadmiss.Bidens leucantha Willdenow, forma discoidea Schultz Bipontinus 1844; Bidens pilosa Linnaeus, forma discoidea Schultz Bipontinus 1844, nom. inadmiss.; Bidens pilosa Linnaeus 1753. 
Bidens reflexa Bidens reflexa Link, Enum. Pl. Hort. Berol. Alt. 2: 306. 1822. MEXICO: Cult. in Berlin,

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: Baldwin, Butler, Coffee, Conecuh, Covington, Crenshaw, Dale, Dallas, Geneva, Henry, Houston, Jefferson, Mobile, Montgomery, Pike

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, SAMF, TROY, USAM, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000001550 Houston 04 Nov 2004 Alvin R. Diamond
14874
TROY
Bidens pilosa Linnaeus
AMAL00002764 Houston 08 Sep 2002 Daniel D. Spaulding
11568
AMAL
Bidens pilosa Linnaeus
UWAL0039243 Dallas 12 Oct 2018 Diamond, Alvin R.
28535
UWAL
Bidens pilosa Linnaeus
UWAL0013556 Houston 09 Dec 2012 Diamond, Alvin R.
23584
UWAL
Bidens pilosa Linnaeus
AUA000001764 Conecuh 24 SEP 2005 DIAMOND, JR., ALVIN R.
15819
AUA
BIDENS PILOSA L.
AMAL00000103 Baldwin 10 Jun 2008 Daniel D. Spaulding
12946
AMAL
Bidens pilosa Linnaeus
TROY000001547 Covington 17 Dec 2005 Alvin R. Diamond
16084
TROY
Bidens pilosa Linnaeus
UWAL0010722 Houston 11 Dec 2011 Diamond, Alvin R.
22744
UWAL
Bidens pilosa Linnaeus
TROY000001588 Houston 08 Sep 2002 Daniel D. Spaulding
11568
TROY
Bidens pilosa Linnaeus
TROY000043471 Henry 10 Jan 2016 Alvin R. Diamond
27134
TROY
Bidens pilosa Linnaeus
AUA000001833 Baldwin 1 JUN 1972 KRAL, ROBERT
47048
AUA
BIDENS PILOSA L.
AUA000001765 Houston 4 NOV 2004 DIAMOND, JR., ALVIN R.
14874
AUA
BIDENS PILOSA L.
UWAL0033173 Geneva 16 Nov 2014 Diamond, Alvin R.
25681
UWAL
Bidens pilosa Linnaeus
UWAL0016028 Crenshaw 17 Nov 2012 Diamond, Alvin R.
23561
UWAL
Bidens pilosa Linnaeus
SAMF0005246 Jefferson 26 Sep 2006 Davenport, L. J.
3590
SAMF
Bidens pilosa Linnaeus
TROY000001551 Pike 01 Nov 2002 Alvin R. Diamond
13726
TROY
Bidens pilosa Linnaeus
AMAL00016333 Houston 04 Nov 2004 A. R. Diamond
14874
AMAL
Bidens pilosa Linnaeus
TROY000044666 Geneva 17 Aug 2017 Cameron Byrd
374
TROY
Bidens pilosa Linnaeus
UWAL0016338 Montgomery 03 Aug 2014 Diamond, Alvin R.
25427
UWAL
Bidens pilosa Linnaeus
TROY000020887 Covington 09 Nov 2008 Alvin R. Diamond
20436
TROY
Bidens pilosa Linnaeus
AMAL00002749 Pike 01 Nov 2002 A. R. Diamond
13726
AMAL
Bidens pilosa Linnaeus
AUA000020015 Covington 17 DEC 2005 DIAMOND, JR., ALVIN R.
16084
AUA
BIDENS PILOSA L.
USAM000001915 Mobile 23 Nov 1968 Michel G. Lelong
5017
USAM
Bidens pilosa Linnaeus
AMAL00012328 Mobile 14 Jul 2009 T. Wayne Barger
SP#158
AMAL
Bidens pilosa Linnaeus
UWAL0019594 Butler 27 Sep 2014 Diamond, Alvin R.
25577
UWAL
Bidens pilosa Linnaeus
AUA000001763 Baldwin 26 DEC 2005 DIAMOND, JR., ALVIN R.
16107
AUA
BIDENS PILOSA L.
TROY000001549 Conecuh 24 Sep 2005 Alvin R. Diamond
15819
TROY
Bidens pilosa Linnaeus
UWAL0033286 Henry 10 Jan 2016 Diamond, Alvin R.
27134
UWAL
Bidens pilosa Linnaeus
USAM000001888 Baldwin 15 Jun 1974 Michel G. Lelong
7831
USAM
Bidens pilosa Linnaeus
TROY000001545 Baldwin 26 Dec 2005 Alvin R. Diamond
16017
TROY
Bidens pilosa Linnaeus
TROY000043317 Geneva 16 Nov 2014 Alvin R. Diamond
25681
TROY
Bidens pilosa Linnaeus
TROY000014662 Pike 29 Sep 2007 Michael Woods
10910
TROY
Bidens pilosa Linnaeus
AUA000020014 Coffee 7 NOV 2005 DIAMOND, JR., ALVIN R.
16048
AUA
BIDENS PILOSA L.
UWAL0038021 Baldwin 15 Jun 1974 LeLong, Michel G.
7831
UWAL
Bidens pilosa Linnaeus
UWAL0002406 Baldwin 10 Jun 2008 Spaulding, Daniel D.
12946
UWAL
Bidens pilosa L.
UWAL0010257 Baldwin 13 Oct 2007 Keener, Brian R.
3948
UWAL
Bidens pilosa L.
TROY000001546 Coffee 07 Nov 2005 Alvin R. Diamond
16048
TROY
Bidens pilosa Linnaeus
AUA000026976 Baldwin 3 OCT 2007 BARGER, T. WAYNE
PERD-158
AUA
BIDENS PILOSA L.
UWAL0000825 Montgomery 29 Sep 2009 Diamond, A.R.
20950
UWAL
Bidens pilosa L.
AUA000024885 Dale 7 NOV 2005 DIAMOND, JR., ALVIN R.
16049
AUA
BIDENS PILOSA L.
AMAL00014259 Pike 29 Sep 2007 Michael Woods
10910
AMAL
Bidens pilosa Linnaeus
UWAL0000478 Covington 09 Nov 2008 Diamond, A.R.
20436
UWAL
Bidens pilosa L.
TROY000001548 Dale 07 Nov 2005 Alvin R. Diamond
16049
TROY
Bidens pilosa Linnaeus
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