Equisetum arvense

Classification	Ferns and Fern Allies
Family	Equisetaceae
Family (Traditional)	Equisetaceae
Genus	Equisetum
Species	Equisetum arvense L.
Common Name	Common horsetail, Field horsetail
Growth Habit	Fern
Duration	Perennial
Plant Notes	**
C value	1
Status	Native, FAC (NWPL)
Specimens	View and Download Specimen Details »

** Not applicable or data not available.

Subspecies and Varieties

Not applicable or data not available.

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

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Synonyms

Synonym	Full Citation	Basionym	Type
Equisetum arvense var. alpestre	Equisetum arvense var. alpestre Wahlenb.
Equisetum arvense var. boreale	Equisetum arvense var. boreale (Bong.) Rupr.
Equisetum arvense var. campestre	Equisetum arvense var. campestre Wahlenb.
Equisetum arvense var. ramulosum	Equisetum arvense var. ramulosum
Equisetum arvense var. riparium	Equisetum arvense var. riparium Farw.
Equisetum calderi	Equisetum calderi Boivin
Equisetum saxicola	Equisetum saxicola

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 an accession number to view full details; click on column headers to sort.

Counties included on distribution map: Allen, Boone, Carroll, Cass, Clay, Clinton, Decatur, Elkhart, Fayette, Fountain, Fulton, Hendricks, Henry, Howard, Kosciusko, LaGrange, LaPorte, Lawrence, Madison, Marion, Miami, Monroe, Morgan, Newton, Owen, Parke, Putnam, Randolph, Shelby, Steuben, Tipton, Wabash, Warren

Herbaria represented by specimen data listed below: BUT

Range of years during which specimens were collected: 1911 - 2006

Accession No. (click for full details)	County	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
56931	Howard	05 May 1939	Charles M. Ek	BUT Equisetum arvense L.
65028	Elkhart	14 May 1942	Charles M. Ek	BUT Equisetum arvense L.
150092	Miami	22 May 1938	Charles M. Ek	BUT Equisetum arvense L.
65975	Clinton	04 Jul 1942	Charles M. Ek	BUT Equisetum arvense L.
65090	Cass	07 Jul 1942	Charles M. Ek	BUT Equisetum arvense L.
65444	Clinton	14 Jul 1942	Charles M. Ek	BUT Equisetum arvense L.
64138	Clinton	22 Sep 1942	Charles M. Ek	BUT Equisetum arvense L.
150086	Putnam	30 Apr 1911	Earl J. Grimes 459	BUT Equisetum arvense L.
150093	Warren	19 Jun 1991	Gayle Tonkovich 118	BUT Equisetum arvense L.
12149	Monroe	02 Jun 1932	J.E. Potzger 2539	BUT Equisetum arvense L.
153223	Marion	22 Apr 2006	P. A. Scott 2060	BUT Equisetum arvense L.
152690	Allen	04 May 1993	P. E. Rothrock 2796	BUT Equisetum arvense L.
150085	Madison	07 May 1992	P.E. Rothrock 2404	BUT Equisetum arvense L.
151741	Parke	21 Jul 2004	R. K. Scott 437	BUT Equisetum arvense L.
152849	Marion	07 May 1997	Raelene M. Crandall 168	BUT Equisetum arvense L.
16229	Lawrence	19 Jun 1933	Ralph Kriebel 299	BUT Equisetum arvense L.
358	Marion		Ray C. Friesner	BUT Equisetum arvense L.
359	Marion		Ray C. Friesner	BUT Equisetum arvense L.
360	Marion		Ray C. Friesner	BUT Equisetum arvense L.
361	Marion		Ray C. Friesner	BUT Equisetum arvense L.
357	Marion		Ray C. Friesner	BUT Equisetum arvense L.
457	Marion		Ray C. Friesner	BUT Equisetum arvense L.
19424	Putnam	28 Apr 1934	Ray C. Friesner 7319	BUT Equisetum arvense L.
39693	Morgan	09 May 1937	Ray C. Friesner 9582	BUT Equisetum arvense L.
72675	Randolph	12 May 1945	Ray C. Friesner 18842	BUT Equisetum arvense L.
9995	Fountain	21 May 1932	Ray C. Friesner 3969	BUT Equisetum arvense L.
39171	Kosciusko	23 May 1937	Ray C. Friesner 10514	BUT Equisetum arvense L.
74543	Henry	09 Jun 1945	Ray C. Friesner 18950	BUT Equisetum arvense L.
18950	Henry	09 Jun 1945	Ray C. Friesner 74543	BUT Equisetum arvense L.
37590	Tipton	12 Jun 1937	Ray C. Friesner 10646	BUT Equisetum arvense L.
55879	Wabash	14 Jun 1941	Ray C. Friesner 15321	BUT Equisetum arvense L.
67886	Carroll	19 Jun 1943	Ray C. Friesner 17728	BUT Equisetum arvense L.
81306	Clay	21 Jun 1947	Ray C. Friesner 21540	BUT Equisetum arvense L.
54150	Fulton	28 Jun 1941	Ray C. Friesner 15502	BUT Equisetum arvense L.
71097	Fayette	01 Jul 1944	Ray C. Friesner 18209	BUT Equisetum arvense L.
54955	Steuben	12 Jul 1941	Ray C. Friesner 15692	BUT Equisetum arvense L.
67699	Putnam	17 Jul 1943	Ray C. Friesner 17846	BUT Equisetum arvense L.
62556	Boone	18 Jul 1942	Ray C. Friesner 16979	BUT Equisetum arvense L.
85946	Newton	23 Jul 1949	Ray C. Friesner 22890	BUT Equisetum arvense L.
61938	Shelby	01 Aug 1942	Ray C. Friesner 17109	BUT Equisetum arvense L.
77885	Decatur	03 Aug 1946	Ray C. Friesner 20889	BUT Equisetum arvense L.
62779	Madison	05 Sep 1942	Ray C. Friesner 17381	BUT Equisetum arvense L.
62442	LaPorte	12 Sep 1942	Ray C. Friesner 17435	BUT Equisetum arvense L.
67871	Hendricks	18 Sep 1943	Ray C. Friesner 18000	BUT Equisetum arvense L.
56700	Miami	20 Sep 1941	Ray C. Friesner 16454	BUT Equisetum arvense L.
14970	Putnam	07 Oct 1933	Ray C. Friesner 7118	BUT Equisetum arvense L.
43513	Owen	15 Oct 1938	Ray C. Friesner 13263	BUT Equisetum arvense L.
156125	LaGrange	4/30/1976	Lee Casebere	BUT Equisetum arvense L.

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Equisetum arvense

Subspecies and Varieties

Related Links

Synonyms

Specimens and Distribution