Pterocaulon pycnostachyum

Family:ASTERACEAE
Species:Pterocaulon pycnostachyum (Michx.)Elliott
Common Name:BLACKROOT
Status:Native, FACU (NWPL)
Specimen: View details of USF Herbarium specimens

** Not applicable or data not available.

Classification

Division
Class
Sub Class
Order ASTERALES
FamilyASTERACEAE
Genus Pterocaulon
Species Pterocaulon pycnostachyum (Michx.)Elliott - BLACKROOT

Citation

Citation PTEROCAULON PYCNOSTACHYUM (Michaux) Elliott, Sketch Bot. S. Carolina 2: 324. 1823.
Basionym: Conyza pycnostachya Michaux 1803.
Type: "Carolina ad Floridam",

** Not applicable or data not available.

Source

CountyHerbariaLiterature Citation (If Applicable)
Alachua USF  
Baker USF  
Bay FLAS  
Bradford USF  
Brevard USF  
Broward USF  
Calhoun USF  
Charlotte USF  
Citrus USF  
Clay USF  
Collier USF  
Columbia USF  
DeSoto USF  
Duval USF  
Escambia FSU  
Flagler USF  
Franklin FSU  
Gilchrist FLAS  
Glades USF  
Gulf USF  
Hamilton USF  
Hardee USF  
Hendry USF  
Hernando USF  
Highlands USF  
Hillsborough USF  
Indian River FLAS  
Jefferson USF  
Lafayette FLAS  
Lake USF  
Lee USF  
Leon USF  
Levy FLAS  
Liberty USF  
Manatee USF  
Marion USF  
Martin USF  
Miami-Dade USF  
Monroe Keys USF  
Nassau USF  
Okaloosa FLAS  
Okeechobee USF  
Orange USF  
Osceola USF  
Palm Beach USF  
Pasco USF  
Pinellas USF  
Polk USF  
Putnam USF  
Santa Rosa USF  
Sarasota USF  
Seminole USF  
St. Johns USF  
St. Lucie USF  
Sumter USF  
Suwannee FLAS  
Taylor FLAS  
Union USF  
Volusia USF  
Wakulla FSU  
Walton FLAS  
Washington FLAS  

Synonyms

– Denotes synonyms that are applicable to the state. Show these synonyms only

SynonymFull CitationBasionymType
Chlaenobolus pycnostachyus Chlaenobolus pycnostachyus (Michaux) Cassini, in Cuvier, Dict. Sci. Nat. 49: 338. 1827.BASIONYM: Conyza pycnostachya Michaux 1803. 
Chlaenobolus undulatus Chlaenobolus undulatus Small, Fl. S.E. U.S. 1236, 1340. 1903. nom. illegit.BASIONYM: Pterocaulon undulatum C. Mohr 1901, nom. illegit.; Conyza pycnostachya Michaux 1803. 
Conyza pycnostachya Conyza pycnostachya Michaux, Fl. Bor.-Amer. 2: 126. 1803. TYPE: "Carolina ad Floridam",
Pterocaulon undulatum Pterocaulon undulatum C. Mohr, Contr. U.S. Natl. Herb. 6: 790. 1901, nom. illegit.BASIONYM: Conyza pycnostachya Michaux 1803. 

Specimens

Country State County Date Specimen Notes Image
USA Florida Highlands Co. 15 Dec 1998 K. R. DeLaney s.n.
USA Florida Highlands Co. 09 Apr 1952 G. R. Cooley 1249
USA Florida Miami-Dade Co. 12 Jul 1947 B. Ledin 1693
USA Florida Citrus Co. 05 Jun 1958 R. Kral 6631
USA Florida Hillsborough Co. 10 Nov 1977 J. Gregory 61
USA Florida Pasco Co. 26 Nov 1977 C. G. Willett 126
USA Florida Orange Co. 13 May 1980 L. J. Davenport 1852
USA Florida Marion Co. 26 Apr 1981 D. S. Correll 51704
USA Florida Volusia Co. 20 May 1981 G. Robinson 152
USA Florida Pinellas Co. 28 Apr 1980 G. Fleming 3356
USA Florida Collier Co. 17 Nov 1973 R. P. Wunderlin 5178
USA Florida Sarasota Co. 20 Mar 1980 R. P. Sauleda 3369
USA Florida Pinellas Co. 18 May 1974 D. R. Jones 7
USA Florida Hillsborough Co. 23 May 1974 S. Hardee 22
USA Florida Sarasota Co. 19 Jun 1995 B. K. Holst 4982
USA Florida Citrus Co. 29 Jun 1992 S. L. Orzell 19748
USA Florida Citrus Co. 12 May 2000 R. A. Hattaway FC0115
USA Florida Seminole Co. 30 Apr 2008 W. D. Longbottom 11128
USA Florida Hernando Co. 13 May 1971 G. Fleming 765
USA Florida Brevard Co. 04 May 1973 A.G. Shuey M0018
USA Florida Monroe Co. 26 Mar 1980 W. C. Brumbach 9549
USA Florida Okeechobee Co. 29 May 1980 B. F. Hansen 7242
USA Florida Volusia Co. 28 Apr 1979 D. Richardson 760
USA Florida Hillsborough Co. 06 Oct 1977 R. Rose 130
USA Florida Volusia Co. 18 May 1979 B. F. Hansen 5610
USA Florida Clay Co. 18 May 1979 B. F. Hansen 5496
USA Florida Sarasota Co. 26 Jun 1976 C. H. Dodson 4486
USA Florida Charlotte Co. 27 Oct 1977 A. Fulton 60
USA Florida Manatee Co. 18 May 1978 A.G. Shuey 2082
USA Florida Miami-Dade Co. 10 Jul 1971 C. P. Sreemadhavan 5061
USA Florida Highlands Co. 08 Jun 1994 S. Cole HH0048
USA Florida Sarasota Co. 09 May 2007 A. R. Franck 118
USA Florida Alachua Co. 27 Apr 1990 S. L. Orzell 13206
USA Florida Collier Co. 16 Jun 1992 S. L. Orzell 19661
USA Florida Charlotte Co. 20 Mar 2000 S.W. Braem DP0160
USA Florida Clay Co. 09 Jul 1992 S. L. Orzell 20118
USA Florida Jefferson Co. 27 Apr 1990 S. L. Orzell 13188
USA Florida Nassau Co. 02 Jul 1992 S. L. Orzell 19906
USA Florida Broward Co. 21 Mar 1965 O. K. Lakela 28305
USA Florida Pasco Co. 11 Oct 1977 W. Carey 35
USA Florida Pinellas Co. 12 May 1993 B. F. Hansen 12214
USA Florida Hillsborough Co. 08 Mar 1963 W. E. Wall 40
USA Florida Hillsborough Co. 22 Apr 1998 J. Myers 4
USA Florida Manatee Co. 08 May 1997 C. Becker WC0167
USA Florida Hillsborough Co. 25 Jun 1977 P. Jourdan s.n.
USA Florida Collier Co. 27 Mar 1992 J. Weber CS0131
USA Florida Lee Co. 10 Jun 1985 E. Brown s.n.
USA Florida Highlands Co. 04 Apr 1981 D. R. Lindsey 312
USA Florida Santa Rosa Co. 11 Jun 1980 G. Wilhelm 7177
USA Florida Pinellas Co. 30 Jun 1973 L. Fowler 25
USA Florida Manatee Co. 13 Apr 1975 G. Fleming 2017
USA Florida Sumter Co. 25 Jun 2004 A. Bishop DB0052
USA Florida Seminole Co. 20 Apr 2002 W. D. Longbottom 5097
USA Florida Brevard Co. 27 Mar 2002 J. E. Tear 2108
USA Florida Citrus Co. 30 Apr 1972 G. Fleming 1243
USA Florida Pinellas Co. 17 Apr 1988 G. Fleming 4010
USA Florida Flagler Co. 12 Jun 1978 D. Tabb s.n.
USA Florida Citrus Co. 24 Apr 1984 M. E. Schmid A-396
USA Florida Hendry Co. 05 Jan 1973 LeDoux 301
USA Florida Monroe Co. 13 Nov 1964 O. K. Lakela 27900
USA Florida Collier Co. 25 Sep 1964 O. K. Lakela 27403
USA Florida Broward Co. 30 Apr 1959 W. C. Sturtevant 101
USA Florida Palm Beach Co. 24 Aug 1967 P. M. Cassen 153
USA Florida Leon Co. 14 Jul 1966 D. Laker s.n.
USA Florida Baker Co. 11 Jul 1984 B. F. Hansen 10080
USA Florida Marion Co. 09 May 1975 S. T. Cooper 545
USA Florida Hernando Co. 05 May 1973 G. Fleming 1799 R.L.
USA Florida Union Co. 12 Jul 1984 B. F. Hansen 10280
USA Florida Polk Co. 08 May 1981 D. R. Lindsey 463
USA Florida Palm Beach Co. 03 Mar 1972 M. Durako 12
USA Florida Monroe Co. 09 Jun 1973 F. Almeda 1919
USA Florida Brevard Co. 21 Jul 1972 A.G. Shuey M1216
USA Florida Polk Co. 05 Jun 1976 J. Brown s.n.
USA Florida Hillsborough Co. 16 Jul 1976 S. Mortellaro 94
USA Florida Osceola Co. 25 Jun 1977 R. P. Wunderlin 5770
USA Florida Pasco Co. 20 Jun 2002 C. vanHoek WB044
USA Florida Brevard Co. 07 Jul 2003 L. A. Lathrop 128
USA Florida Calhoun Co. 05 Jun 2006 T. MacClendon 470
USA Florida Osceola Co. 07 May 2000 W. D. Longbottom 4849
USA Florida Putnam Co. 03 May 2008 W. D. Longbottom 11312
USA Florida Pinellas Co. 18 Jun 1977 G. Fleming 2874
USA Florida Sarasota Co. 07 Jun 1977 J. Brown 503
USA Florida Charlotte Co. 21 May 2009 A. R. Franck 1266
USA Florida Osceola Co. 07 May 2000 W. D. Longbottom 4829
USA Florida Pinellas Co. 01 May 1977 G. Fleming 2734
USA Florida Osceola Co. 14 Aug 1981 B. F. Hansen 8620
USA Florida Orange Co. 25 Aug 1981 B. F. Hansen 8744
USA Florida Sarasota Co. 10 Apr 1991 A. Peters OS0029
USA Florida Pinellas Co. 29 Apr 1983 G. Fleming 3550
USA Florida Hamilton Co. 14 Jun 1959 D. B. Ward 1433
USA Florida Bradford Co. 15 May 1959 D. B. Ward 1360
USA Florida Hardee Co. 14 Apr 1961 BTY [Botany] 421 A-11
USA Florida Hillsborough Co. 28 Jun 1977 J.M. Carlton s.n.
USA Florida Lee Co. 20 Apr 1979 B. F. Hansen 5418
USA Florida DeSoto Co. 16 Oct 1978 A. Fulton 194
USA Florida Sarasota Co. 22 Apr 1997 M. E. Nolan 40
USA Florida Manatee Co. 16 May 1992 R. Owens SF0095
USA Florida Hillsborough Co. 22 Oct 1994 R. P. Wunderlin 10638
USA Florida Highlands Co. 26 Jul 1979 B. F. Hansen 6116
USA Florida Hillsborough Co. 28 Jun 1977 J.M. Carlton s.n.
USA Florida Miami-Dade Co. 21 May 1998 K. A. Bradley 1725
USA Florida Hillsborough Co. 27 Jun 1995 S. Landry s.n.
USA Florida Miami-Dade Co. 25 May 1996 C. L. McCartney Jr. 62
USA Florida Sumter Co. 03 Jun 1999 M. T. Strong 1908
USA Florida Marion Co. 10 Aug 1998 M. T. Strong 1664
USA Florida Polk Co. 29 May 1981 D. R. Lindsey 681
USA Florida Sumter Co. 28 Jun 1984 R. P. Wunderlin 9658
USA Florida Lake Co. 09 May 1976 R. F. Daubenmire s.n.
USA Florida Citrus Co. 21 Apr 1983 M. E. Schmid A-208
USA Florida Volusia Co. 18 May 1979 B. F. Hansen 5620
USA Florida Columbia Co. 11 Jul 1984 B. F. Hansen 10151
USA Florida Leon Co. 30 Oct 1983 A. Parker 1796
USA Florida Highlands Co. 25 Apr 1960 J. D. Ray, Jr. 9786
USA Florida Pasco Co. 09 Aug 1960 J. D. Ray, Jr. 9919
USA Florida Seminole Co. 02 May 1960 G. R. Cooley 7471
USA Florida Manatee Co. 15 Jun 1995 S. Cole LM00142
USA Florida Charlotte Co. 20 Mar 2000 S. W. Braem DP0160
USA Florida Hillsborough Co. 24 Aug 1960 J. D. Ray, Jr. 10086
USA Florida Sarasota Co. 23 Apr 1963 O. K. Lakela 25848
USA Florida Volusia Co. 24 Mar 1918 B. Ames s.n.
USA Florida Pasco Co. 16 Jun 1961 O. K. Lakela 24275
USA Florida Highlands Co. 25 May 1988 K. R. DeLaney 1714
USA Florida Highlands Co. 29 Apr 1965 R. Metzger 202
USA Florida Lee Co. 20 Apr 1964 O. K. Lakela 26974
USA Florida Hillsborough Co. 13 Jul 1994 K. Graham HR0059
USA Florida Pinellas Co. 08 Apr 1994 S. Cole CI0019
USA Florida Santa Rosa Co. 31 May 1982 G. Wilhelm 10176
USA Florida Highlands Co. 15 May 1981 D. R. Lindsey 513
USA Florida Collier Co. 27 Mar 1992 J. Weber CS0131
USA Florida Collier Co. 18 Feb 1968 R. W. Long 2759
USA Florida Pinellas Co. 04 May 1994 R. P. Wunderlin 10435
USA Florida Lee Co. 03 Jun 1994 S. Cole KS0042
USA Florida Manatee Co. 03 May 2000 K. Chavez 3
USA Florida Pasco Co. 02 May 2003 E. M. Ferguson 79
USA Florida Polk Co. 25 Apr 1997 C. vanHoek 913
USA Florida DeSoto Co. 23 Nov 2009 A. R. Franck 1525
USA Florida Highlands Co. 22 Oct 2002 A. Bishop LJ0172
USA Florida Highlands Co. 28 Apr 1996 C. vanHoek 520
USA Florida Volusia Co. 11 Aug 2004 J. M. Kunzer 619
USA Florida Glades Co. 08 May 2010 A. R. Franck 2059
USA Florida Glades Co. 30 May 2010 A. R. Franck 2195
USA Florida Liberty Co. 09 May 2007 K. M. Meyer 60
USA Florida Hardee Co. 29 Jun 2004 A. Bishop PC0066
USA Florida Martin Co. Jun 1988 R. O. Woodbury s.n.
USA Florida Brevard Co. 12 May 2007 P. Schlueb s.n.
USA Florida St. Johns Co. 29 Sep 2011 W. D. Longbottom 16417
USA Florida St. Lucie Co. 21 Jul 2012 S. Myers 645
USA Florida Sumter Co. 20 Apr 2012 W. D. Longbottom 17134
USA Florida Baker Co. 18 Apr 2012 W. D. Longbottom 17057
USA Florida Hillsborough Co. 20 Jun 2013 R. Chicone 1072
USA Florida Duval Co. 29 May 1975 M. R. Blake s.n. From Eckerd College Herbarium.
USA Florida Lake Co. 28 May 2001 R. Mejeur 863
USA Florida Orange Co. 13 Jul 2013 K. Richards 5
USA Florida Hardee Co. 23 May 2014 P. J. Simoes 6
USA Florida Orange Co. 08 Jun 2002 R. Mejeur 960
USA Florida Hillsborough Co. 01 Jul 2015 A. Farid 46
USA Florida Nassau Co. 15 May 2016 W. D. Longbottom 24748
USA Florida Glades Co. 14 May 1964 P. Silverstone 149
USA Florida Highlands Co. May 1966 R. E. Roberts 49
USA Florida Palm Beach Co. 14 May 1964 H. W. Severance 74
USA Florida Highlands Co. 07 May 1966 J. L. Behler 49
USA Florida Gulf Co. 20 May 2016 W. D. Longbottom 25075
USA Florida Collier Co. Mar 1964 N. Woessner 68
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