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 3 of Ohio's 88 counties. Explore Ohio
No result yet (2)
Recorded, too few records for a result (61)
Recorded, season not shown (22)
Season shown (3)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
white clover by Ohio county: records and mapped range
County
Records
Adams County
Recorded, too few records for a result
Allen County
23 · Recorded, season not shown
Ashland County
32 · Recorded, season not shown
Ashtabula County
Recorded, too few records for a result
Athens County
257 · Season 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
135 · Recorded, season not shown
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
22 · Recorded, season not shown
Clermont County
37 · Season shown
Clinton County
Recorded, too few records for a result
Columbiana County
20 · Recorded, season not shown
Coshocton County
Recorded, too few records for a result
Crawford County
Recorded, too few records for a result
Cuyahoga County
123 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
30 · Recorded, season not shown
Erie County
Recorded, too few records for a result
Fairfield County
Recorded, too few records for a result
Fayette County
Recorded, too few records for a result
Franklin County
249 · Recorded, season not shown
Fulton County
No qualifying records yet
Gallia County
32 · Recorded, season not shown
Geauga County
Recorded, too few records for a result
Greene County
29 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
147 · Season shown
Hancock County
Recorded, too few records for a result
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
Recorded, too few records for a result
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
24 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
26 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
29 · Recorded, season not shown
Lucas County
86 · Recorded, season not shown
Madison County
Recorded, too few records for a result
Mahoning County
24 · Recorded, season not shown
Marion County
Recorded, too few records for a result
Medina County
Recorded, too few records for a result
Meigs County
Recorded, too few records for a result
Mercer County
Recorded, too few records for a result
Miami County
Recorded, too few records for a result
Monroe County
Recorded, too few records for a result
Montgomery County
60 · 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
Recorded, too few records for a result
Paulding County
No qualifying records yet
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
30 · Recorded, season not 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
33 · Recorded, season not shown
Summit County
104 · Recorded, season not 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
34 · Recorded, season not shown
Washington County
Recorded, too few records for a result
Wayne County
46 · Recorded, season not shown
Williams County
Recorded, too few records for a result
Wood County
70 · Recorded, season not 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 Cuyahoga County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 123 records in 10 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Cuyahoga County · records of all species each week, 92,154 in all
Records per week from 123 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of white clover in Cuyahoga County each week, and records of all species
Week
Records of white clover
Years recorded
Records of all species
Jan 4–10
0
0
468
Jan 11–17
0
0
502
Jan 18–24
0
0
393
Jan 25–31
0
0
380
Feb 1–7
0
0
590
Feb 8–14
0
0
504
Feb 15–21
0
0
455
Feb 22–28
0
0
583
Mar 1–7
1
1
567
Mar 8–14
0
0
750
Mar 15–21
0
0
819
Mar 22–28
0
0
780
Mar 29 – Apr 4
1
1
1,014
Apr 5–11
0
0
1,655
Apr 12–18
0
0
2,306
Apr 19–25
1
1
1,857
Apr 26 – May 2
3
3
4,135
May 3–9
5
4
2,830
May 10–16
2
2
2,640
May 17–23
13
5
2,938
May 24–30
7
5
2,903
May 31 – Jun 6
9
5
2,621
Jun 7–13
7
3
2,326
Jun 14–20
8
5
2,465
Jun 21–27
4
3
2,426
Jun 28 – Jul 4
5
4
2,632
Jul 5–11
10
3
2,765
Jul 12–18
2
2
2,898
Jul 19–25
4
3
2,860
Jul 26 – Aug 1
4
4
2,736
Aug 2–8
2
1
3,021
Aug 9–15
2
2
2,627
Aug 16–22
3
3
2,732
Aug 23–29
0
0
2,388
Aug 30 – Sep 5
4
2
3,076
Sep 6–12
2
2
3,578
Sep 13–19
4
3
3,735
Sep 20–26
5
4
3,328
Sep 27 – Oct 3
7
5
2,834
Oct 4–10
3
3
2,275
Oct 11–17
0
0
1,937
Oct 18–24
1
1
1,181
Oct 25–31
0
0
1,172
Nov 1–7
0
0
893
Nov 8–14
0
0
854
Nov 15–21
0
0
485
Nov 22–28
4
1
552
Nov 29 – Dec 5
0
0
448
Dec 6–12
0
0
498
Dec 13–19
0
0
458
Dec 20–26
0
0
575
Dec 27 – Jan 2
0
0
709
Reported in flower
Only 8 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
Early April to mid-July, middle week late May, and again early August to mid-November, middle week mid-September
Recorded in two separate seasons, each shown with its own early, middle and late weeks.
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 2,476 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of white clover in Ohio each week, and records of all species
Week
Records of white clover
Years recorded
Records of all species
Jan 4–10
1
1
6,211
Jan 11–17
0
0
5,146
Jan 18–24
1
1
4,645
Jan 25–31
0
0
4,698
Feb 1–7
1
1
6,023
Feb 8–14
3
1
5,888
Feb 15–21
1
1
5,436
Feb 22–28
5
2
6,846
Mar 1–7
2
2
8,321
Mar 8–14
7
3
10,384
Mar 15–21
11
4
12,620
Mar 22–28
29
5
13,949
Mar 29 – Apr 4
15
7
19,661
Apr 5–11
38
8
26,860
Apr 12–18
49
6
39,925
Apr 19–25
50
9
41,623
Apr 26 – May 2
85
9
56,391
May 3–9
124
9
52,952
May 10–16
83
8
53,785
May 17–23
206
10
57,698
May 24–30
142
10
54,651
May 31 – Jun 6
134
8
53,099
Jun 7–13
97
9
53,700
Jun 14–20
104
9
56,625
Jun 21–27
90
10
55,361
Jun 28 – Jul 4
66
9
58,477
Jul 5–11
62
9
61,336
Jul 12–18
72
8
64,722
Jul 19–25
54
9
69,753
Jul 26 – Aug 1
27
8
59,416
Aug 2–8
38
8
59,712
Aug 9–15
45
9
55,994
Aug 16–22
44
10
54,328
Aug 23–29
35
8
51,772
Aug 30 – Sep 5
83
9
57,167
Sep 6–12
104
8
59,075
Sep 13–19
91
8
54,543
Sep 20–26
65
10
45,860
Sep 27 – Oct 3
133
10
43,180
Oct 4–10
68
8
37,841
Oct 11–17
43
10
30,824
Oct 18–24
37
8
21,156
Oct 25–31
39
6
19,021
Nov 1–7
22
8
14,172
Nov 8–14
23
8
12,621
Nov 15–21
7
4
7,965
Nov 22–28
13
5
8,136
Nov 29 – Dec 5
3
3
6,083
Dec 6–12
12
7
6,004
Dec 13–19
6
3
5,423
Dec 20–26
2
1
5,661
Dec 27 – Jan 2
4
3
8,459
Reported in flower
Usually reported in flower early May to mid-July, middle week early June, and again early August to early November, middle week early September.
Reported in fruit
Only 1 records here show fruit, too few to show a fruiting season. One needs at least 20 records from 5 different years.
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.
Red CloverTrifolium pratenseOften confused in Ohio: 51 identifications in Ohio named one where the other was meant
Alsike cloverTrifolium hybridumOften confused in Ohio: 51 identifications in Ohio named one where the other was meant
Black MedickMedicago lupulinaOften confused in Ohio: 22 identifications in Ohio named one where the other was meant
White SweetcloverMelilotus albus215 identifications worldwide named one where the other was meant
Lesser hop trefoilTrifolium dubium183 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
81%49%
Farmland
10%11%
Forest
8%31%
Wetland
1%5%
Grassland and shrub
0.4%0.9%
Barren
0.2%0.6%
Open water
0.2%3%
From 1,787 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)
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.
