Introduced and assessed as invasive in the lower 48 states
iNaturalist's volunteer curators list it as introduced in their Ohio checklist.
US-RIIS assesses a species as invasive when it causes, or is likely to cause, harm there, or is at least locally abundant and harmful ecologically, economically, or to health.
Season shown in 6 of Ohio's 88 counties. Explore Ohio
No result yet (0)
Recorded, too few records for a result (56)
Recorded, season not shown (26)
Season shown (6)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
wild carrot by Ohio county: records and mapped range
County
Records
Adams County
25 · Recorded, season not shown
Allen County
51 · Recorded, season not shown
Ashland County
26 · Recorded, season not shown
Ashtabula County
Recorded, too few records for a result
Athens County
143 · Recorded, season not shown
Auglaize County
Recorded, too few records for a result
Belmont County
Recorded, too few records for a result
Brown County
Recorded, too few records for a result
Butler County
160 · Recorded, season not shown
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
Recorded, too few records for a result
Clermont County
60 · Recorded, season not shown
Clinton County
Recorded, too few records for a result
Columbiana County
Recorded, too few records for a result
Coshocton County
Recorded, too few records for a result
Crawford County
Recorded, too few records for a result
Cuyahoga County
256 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
73 · Season shown
Erie County
31 · Recorded, season not shown
Fairfield County
28 · Recorded, season not shown
Fayette County
Recorded, too few records for a result
Franklin County
366 · Season shown
Fulton County
Recorded, too few records for a result
Gallia County
Recorded, too few records for a result
Geauga County
47 · Recorded, season not shown
Greene County
76 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
166 · Recorded, season not shown
Hancock County
20 · Recorded, season not shown
Hardin County
Recorded, too few records for a result
Harrison County
Recorded, too few records for a result
Henry County
Recorded, too few records for a result
Highland County
Recorded, too few records for a result
Hocking County
24 · Recorded, season not shown
Holmes County
Recorded, too few records for a result
Huron County
Recorded, too few records for a result
Jackson County
Recorded, too few records for a result
Jefferson County
Recorded, too few records for a result
Knox County
Recorded, too few records for a result
Lake County
50 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
63 · Recorded, season not shown
Logan County
20 · Recorded, season not shown
Lorain County
79 · Recorded, season not shown
Lucas County
180 · Recorded, season not shown
Madison County
Recorded, too few records for a result
Mahoning County
21 · Recorded, season not shown
Marion County
Recorded, too few records for a result
Medina County
62 · Recorded, season not shown
Meigs County
Recorded, too few records for a result
Mercer County
Recorded, too few records for a result
Miami County
29 · Recorded, season not shown
Monroe County
Recorded, too few records for a result
Montgomery County
78 · Recorded, season not shown
Morgan County
Recorded, too few records for a result
Morrow County
Recorded, too few records for a result
Muskingum County
Recorded, too few records for a result
Noble County
Recorded, too few records for a result
Ottawa County
24 · Recorded, season not shown
Paulding County
Recorded, too few records for a result
Perry County
Recorded, too few records for a result
Pickaway County
Recorded, too few records for a result
Pike County
Recorded, too few records for a result
Portage County
71 · Season shown
Preble County
Recorded, too few records for a result
Putnam County
Recorded, too few records for a result
Richland County
Recorded, too few records for a result
Ross County
Recorded, too few records for a result
Sandusky County
Recorded, too few records for a result
Scioto County
Recorded, too few records for a result
Seneca County
Recorded, too few records for a result
Shelby County
Recorded, too few records for a result
Stark County
75 · Recorded, season not shown
Summit County
322 · Season shown
Trumbull County
Recorded, too few records for a result
Tuscarawas County
Recorded, too few records for a result
Union County
Recorded, too few records for a result
Van Wert County
Recorded, too few records for a result
Vinton County
Recorded, too few records for a result
Warren County
62 · Recorded, season not shown
Washington County
Recorded, too few records for a result
Wayne County
57 · Season shown
Williams County
Recorded, too few records for a result
Wood County
239 · Season shown
Wyandot County
Recorded, too few records for a result
No mapped range from the range source used, the USGS Gap Analysis Project, which maps land vertebrates only.
Season
When it is recorded
In Portage County
Early May to late October, middle week Aug 16–22
Middle week · Aug 16–22
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Portage County · records of all species each week, 31,804 in all
Records per week from 71 records in 9 of the 10 years from 2016 to 2025. Shows when people recorded it, not how common it is. The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low; the season is not adjusted by them.
Recorded on 60 dates. Latest record: September 2025.
Show as a table
Records of wild carrot in Portage County each week, and records of all species
Week
Records of wild carrot
Years recorded
Records of all species
Jan 4–10
0
0
44
Jan 11–17
0
0
56
Jan 18–24
0
0
31
Jan 25–31
0
0
67
Feb 1–7
0
0
66
Feb 8–14
0
0
74
Feb 15–21
0
0
72
Feb 22–28
0
0
80
Mar 1–7
0
0
109
Mar 8–14
0
0
146
Mar 15–21
0
0
152
Mar 22–28
0
0
140
Mar 29 – Apr 4
0
0
277
Apr 5–11
0
0
451
Apr 12–18
0
0
648
Apr 19–25
3
2
641
Apr 26 – May 2
0
0
849
May 3–9
6
3
1,174
May 10–16
0
0
788
May 17–23
0
0
1,091
May 24–30
0
0
753
May 31 – Jun 6
1
1
782
Jun 7–13
0
0
1,242
Jun 14–20
0
0
1,568
Jun 21–27
0
0
1,383
Jun 28 – Jul 4
1
1
1,344
Jul 5–11
2
2
1,357
Jul 12–18
5
4
1,310
Jul 19–25
3
3
1,431
Jul 26 – Aug 1
5
3
1,439
Aug 2–8
5
3
1,037
Aug 9–15
4
3
1,056
Aug 16–22
4
3
1,145
Aug 23–29
2
2
911
Aug 30 – Sep 5
2
1
930
Sep 6–12
3
3
986
Sep 13–19
3
2
974
Sep 20–26
6
4
1,199
Sep 27 – Oct 3
7
3
985
Oct 4–10
1
1
516
Oct 11–17
0
0
417
Oct 18–24
2
1
435
Oct 25–31
4
4
401
Nov 1–7
0
0
278
Nov 8–14
1
1
251
Nov 15–21
0
0
228
Nov 22–28
1
1
130
Nov 29 – Dec 5
0
0
82
Dec 6–12
0
0
79
Dec 13–19
0
0
69
Dec 20–26
0
0
53
Dec 27 – Jan 2
0
0
77
Reported in flower
Only 4 records here show flowers, too few to show a flowering season. One needs at least 20 records from 5 different years.
Reported in fruit
No records here show fruit yet, so there is no fruiting season to show. One needs at least 20 records from 5 different years.
In Ohio
Mid-May to mid-October, middle week Aug 9–15
Middle week · Aug 9–15
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all
Records per week from 4,085 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not how common it is. The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low; the season is not adjusted by them.
Recorded on 1,221 dates. Latest record: December 2025.
Show as a table
Records of wild carrot in Ohio each week, and records of all species
Week
Records of wild carrot
Years recorded
Records of all species
Jan 4–10
2
2
6,211
Jan 11–17
1
1
5,146
Jan 18–24
1
1
4,645
Jan 25–31
3
2
4,698
Feb 1–7
3
3
6,023
Feb 8–14
3
2
5,888
Feb 15–21
9
2
5,436
Feb 22–28
4
3
6,846
Mar 1–7
3
2
8,321
Mar 8–14
4
3
10,384
Mar 15–21
5
4
12,620
Mar 22–28
5
4
13,949
Mar 29 – Apr 4
11
5
19,661
Apr 5–11
23
5
26,860
Apr 12–18
18
4
39,925
Apr 19–25
22
7
41,623
Apr 26 – May 2
42
9
56,391
May 3–9
25
8
52,952
May 10–16
17
8
53,785
May 17–23
32
8
57,698
May 24–30
11
5
54,651
May 31 – Jun 6
17
6
53,099
Jun 7–13
27
8
53,700
Jun 14–20
27
7
56,625
Jun 21–27
50
8
55,361
Jun 28 – Jul 4
123
9
58,477
Jul 5–11
168
10
61,336
Jul 12–18
310
10
64,722
Jul 19–25
369
10
69,753
Jul 26 – Aug 1
292
10
59,416
Aug 2–8
298
10
59,712
Aug 9–15
261
10
55,994
Aug 16–22
221
10
54,328
Aug 23–29
202
10
51,772
Aug 30 – Sep 5
261
9
57,167
Sep 6–12
250
10
59,075
Sep 13–19
187
10
54,543
Sep 20–26
135
10
45,860
Sep 27 – Oct 3
181
9
43,180
Oct 4–10
183
8
37,841
Oct 11–17
77
8
30,824
Oct 18–24
41
9
21,156
Oct 25–31
54
9
19,021
Nov 1–7
51
7
14,172
Nov 8–14
16
6
12,621
Nov 15–21
6
4
7,965
Nov 22–28
11
6
8,136
Nov 29 – Dec 5
6
6
6,083
Dec 6–12
4
3
6,004
Dec 13–19
4
3
5,423
Dec 20–26
5
4
5,661
Dec 27 – Jan 2
4
2
8,459
Reported in flower
Usually reported in flower late June to mid-October, middle week Aug 9–15.
From 300 records that show flowers. Not every photo of a plant in flower is marked as flowering, so this shows when people reported it in flower, not when it flowers.
Reported in fruit
No fruiting season shown here. Recorded in two separate seasons, so one season would put its middle week in the gap.
What these results show
These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.
Identification
How to identify it
Telling it apart
From what Ohio’s records show. Only what the records support is shown.
spreading chervilChaerophyllum procumbensOften confused in Ohio: 38 identifications in Ohio named one where the other was meant
poison hemlockConium maculatumOften confused in Ohio: 26 identifications in Ohio named one where the other was meant
common yarrowAchillea millefoliumOften confused in Ohio: 21 identifications in Ohio named one where the other was meant
common hedge parsleyTorilis arvensis143 identifications worldwide named one where the other was meant
GoutweedAegopodium podagraria101 identifications worldwide named one where the other was meant
From iNaturalist’s similar-species counts, refreshed monthly: confusions in Ohio first, then worldwide. Only species with an Ohio result are listed.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
64%49%
Farmland
20%11%
Forest
12%31%
Wetland
2%5%
Grassland and shrub
1%0.9%
Open water
0.7%3%
Barren
0.6%0.6%
From 2,774 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)
Finer identifications
Some Ohio records of this species were identified to a subspecies:
Every one of these records counts toward wild carrot's season above.
Why some records go further than species
Many plants vary from place to place. Botanists name these groups at three levels below species: subspecies, variety and form, from the broadest difference to the smallest. Observers and experts only identify a record that far when it shows enough detail to tell them apart. Records without that detail count at the species level.
Names: Catalogue of Life.
Sources
Where these results come from
Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
Seasons use the published method and its evidence thresholds. Methods
A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.
