Ambrosia trifida

ClassificationFlowering Plants
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusAmbrosia
SpeciesAmbrosia trifida L.
Common NameGiant ragweed; Great ragweed
Growth HabitForb
DurationAnnual
Plant Notes**
C value 0
StatusNative, FAC (NWPL)
Specimens View and Download Specimen Details »

** Not applicable or data not available.

Subspecies and Varieties

Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Ambrosia aptera Ambrosia aptera DC.  

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: Boone, Cass, Clay, Clinton, Fayette, Fountain, Greene, Hamilton, Hancock, Harrison, Hendricks, Henry, Howard, Jackson, Jennings, Madison, Marion, Monroe, Owen, Parke, Randolph, Rush, Vermillion, Warren, Whitley

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: BUT

Range of years during which specimens were collected: 1927 - 2004

Accession No. (click for full details) County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
64563 Cass 16 Aug 1942 Charles M. Ek
BUT
Ambrosia trifida L.
57591 Clinton 27 Aug 1941 Charles M. Ek
BUT
Ambrosia trifida L.
49500 Howard 18 Sep 1938 Chas. W. Ek
BUT
Ambrosia trifida L.
95525 Fountain 17 Aug 1952 Franklin B. Buser
1581
BUT
Ambrosia trifida L.
150209 Warren 16 Aug 1991 Gayle Tonkovich
240
BUT
Ambrosia trifida L.
8870 Monroe 26 Sep 1931 J. E. Potzger
2252
BUT
Ambrosia trifida L.
150700 Madison 20 Aug 1992 P.E. Rothrock
2645
BUT
Ambrosia trifida L.
151275 Parke 22 Aug 2004 R. K. Scott
528
BUT
Ambrosia trifida L.
150211 Marion 30 Aug 1996 Raelene M. Crandall
149
BUT
Ambrosia trifida L.
70458 Randolph 29 Jul 1944 Ray C. Friesner
18533
BUT
Ambrosia trifida L.
70525 Hancock 05 Aug 1944 Ray C. Friesner
18603
BUT
Ambrosia trifida L.
53537 Whitley 09 Aug 1941 Ray C. Friesner
16092
BUT
Ambrosia trifida L.
73268 Vermillion 11 Aug 1945 Ray C. Friesner
19508
BUT
Ambrosia trifida L.
82024 Hamilton 16 Aug 1947 Ray C. Friesner
21782
BUT
Ambrosia trifida L.
62833 Hamilton 22 Aug 1942 Ray C. Friesner
17303
BUT
Ambrosia trifida L.
62832 Hamilton 22 Aug 1942 Ray C. Friesner
17303
BUT
Ambrosia trifida L.
2891 Marion 26 Aug 1927 Ray C. Friesner
BUT
Ambrosia trifida L.
82049 Jennings 27 Aug 1947 Ray C. Friesner
21794
BUT
Ambrosia trifida L.
81455 Clay 30 Aug 1947 Ray C. Friesner
21827
BUT
Ambrosia trifida L.
37598 Jackson 31 Aug 1937 Ray C. Friesner
11277
BUT
Ambrosia trifida L.
84221 Greene 04 Sep 1948 Ray C. Friesner
22418
BUT
Ambrosia trifida L.
62659 Madison 05 Sep 1942 Ray C. Friesner
17357
BUT
Ambrosia trifida L.
14223 Owen 06 Sep 1933 Ray C. Friesner
6504
BUT
Ambrosia trifida L.
74228 Henry 08 Sep 1945 Ray C. Friesner
19690
BUT
Ambrosia trifida L.
28687 Marion 11 Sep 1935 Ray C. Friesner
9176
BUT
Ambrosia trifida L.
68069 Hendricks 11 Sep 1943 Ray C. Friesner
17950
BUT
Ambrosia trifida L.
67996 Rush 25 Sep 1943 Ray C. Friesner
18016
BUT
Ambrosia trifida L.
68133 Fayette 25 Sep 1943 Ray C. Friesner
18106
BUT
Ambrosia trifida L.
4803 Parke 22 Aug 1930 Rexford F. Daubenmire
2307
BUT
Ambrosia trifida L.
51926 Boone 26 Aug 1940 Scott McCoy
5225
BUT
Ambrosia trifida L.
51927 Harrison 01 Sep 1940 Scott McCoy
5465
BUT
Ambrosia trifida L.
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