Zanthoxylum americanum

Species:Zanthoxylum americanum Mill.
Status:Native, Endangered-State, FAC (NWPL)
Specimen: View details of USF Herbarium specimens

** Not applicable or data not available.


Sub Class
Genus Zanthoxylum
Species Zanthoxylum americanum Mill. - COMMON PRICKLYASH


Citation ZANTHOXYLUM AMERICANUM Miller, Gard. Dict., ed. 8. 1768.
Basionym: **
Type: WISCONSIN: Richland Co.: 3 mi. SE of Richland Center, 7 Aug 1993, Nee 43682 (neotype: NY; isoneotype: MO). Neotypified by Reynel, Fl. Neotrop. Monogr. 117: 230. 2017.

** Not applicable or data not available.


CountyHerbariaLiterature Citation (If Applicable)
Gadsden FLAS  
Jackson FLAS  
Levy FLAS  


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

SynonymFull CitationBasionymType
Thylax fraxineum Thylax fraxineum (Willdenow) Rafinesque, Med. Fl. 2: 114. 1830.BASIONYM: Zanthoxylum fraxineum Willdenow 1796. 
Zanthoxylum clava-herculis var. americanum Zanthoxylum clava-herculis Linnaeus, var. americanum (Miller) Du Roi, Observ. Bot. 57. 1771.BASIONYM: Zanthoxylum americanum Miller 1768. 
Zanthoxylum fraxineum Zanthoxylum fraxineum Willdenow, Berlin. Baumz. 413. 1796. TYPE: Without data (lectotype: B-W; isolectotypes: B-W(4 shts)). Lectotypified by Reynel, Fl. Neotrop. Monogr. 117: 230. 2017.
Zanthoxylum americanum forma armatius Zanthoxylum americanum Miller, forma armatius F. Gates, Trans. Kansas Acad. Sci. 42: 136. 1940. TYPE: KANSAS: Riley Co.: Riley, 11 Feb 1931, Gates 16503 (holotype: KSC).
Zanthoxylum americanum forma inpuniens Zanthoxylum americanum Miller, forma impuniens Fassett, Torreya 42: 180. 1943. TYPE: WISCONSIN: Juneau Co.: 3 mi. N of Wisconsin Dells, 13 Sep 1938, Fassett & Thomson 21822 (holotype: WIS).
Zanthoxylum fraxinifolium Zanthoxylum fraxinifolium Marshall, Arbust. Amer. 167. 1785.  
Zanthoxylum mite Zanthoxylum mite Willdenow, Enum. Pl. 1013. 1809. TYPE: Without data (lectotype: B-W; isolectotype: B-W). Lectotypified by Reynel, Fl. Neotrop. Monogr. 117: 230. 2017.
Zanthoxylum parvum Zanthoxylum parvum Shinners, Field & Lab. 24: 19. 1956. TYPE: TEXAS: Jeff Davis Co.: Limpes Creek, 10 Apr 1947, McVaugh 7890 (holotype: BRIT; isotype: TEX).
Zanthoxylum ramiflorum Zanthoxylum ramiflorum Michaux, Fl. Bor.-Amer. 2: 235. 1803, nom. illegit.BASIONYM: Zanthoxylum fraxinifolium Marshall 1785. 


Country State County Date Specimen Notes Image
USA Louisiana Caldwell Par. 08 Jun 1973 R. D. Thomas 35313
US South Carolina Berkeley Co. 15 Apr 1968 S. W. Leonard 1277
USA South Carolina Berkeley Co. 08 Apr 1957 H. E. Ahles 22457B
USA Vermont Addison Co. 30 May 1920 C. H. Knowlton s.n.
USA Connecticut Hartford Co. 08 Aug 1988 S. R. Hill 19788
USA Illinois Ogle Co. 22 Jul 2006 P. D. Sorensen 06-55
USA Iowa Dickinson Co. 12 Aug 1932 D. P. Rogers s.n.
USA Illinois LaSalle Co. 20 Jun 2000 S. R. Hill 32462
USA Illinois Tazewell Co. 27 May 1998 S. R. Hill 30334
USA Wisconsin Trempealeau Co. 10 Jun 1999 V. E. McNeilus 99-289
USA Connecticut Hartford Co. 25 Apr 1987 S. R. Hill 17934
USA Ohio Shelby Co. 22 Jul 2008 A. R. Franck 737
USA Illinois Cass Co. 01 Sep 1998 S. R. Hill 30745
USA Illinois Kendall Co. 18 May 2006 S. R. Hill 36889
USA Connecticut Hartford Co. 11 May 1992 S. R. Hill 23037
USA Illinois DeKalb Co. 31 Aug 2011 P. D. Sorensen 11-19
USA Ohio Huron Co. 16 Aug 1909 O. E. Jennings s.n.
USA Ohio Huron Co. 16 Aug 1908 O. E. Jennings s.n.
USA Ohio Huron Co. 16 Aug 1908 O. E. Jennings s.n.
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