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 4 of Ohio's 88 counties. Explore Ohio
No result yet (18)
Recorded, too few records for a result (64)
Recorded, season not shown (2)
Season shown (4)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
bird's-eye speedwell by Ohio county: records and mapped range
County
Records
Adams County
Recorded, too few records for a result
Allen County
Recorded, too few records for a result
Ashland County
Recorded, too few records for a result
Ashtabula County
Recorded, too few records for a result
Athens County
170 · 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
Recorded, too few records for a result
Carroll County
Recorded, too few records for a result
Champaign County
No qualifying records yet
Clark County
Recorded, too few records for a result
Clermont County
Recorded, too few records for a result
Clinton County
No qualifying records yet
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
78 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
Recorded, too few records for a result
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
55 · Season shown
Fulton County
No qualifying records yet
Gallia County
Recorded, too few records for a result
Geauga County
Recorded, too few records for a result
Greene County
Recorded, too few records for a result
Guernsey County
Recorded, too few records for a result
Hamilton County
25 · Recorded, season not shown
Hancock County
Recorded, too few records for a result
Hardin County
Recorded, too few records for a result
Harrison County
No qualifying records yet
Henry County
No qualifying records yet
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
Recorded, too few records for a result
Lawrence County
Recorded, too few records for a result
Licking County
Recorded, too few records for a result
Logan County
Recorded, too few records for a result
Lorain County
Recorded, too few records for a result
Lucas County
Recorded, too few records for a result
Madison County
Recorded, too few records for a result
Mahoning County
No qualifying records yet
Marion County
No qualifying records yet
Medina County
Recorded, too few records for a result
Meigs County
No qualifying records yet
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
Recorded, too few records for a result
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
No qualifying records yet
Ottawa County
Recorded, too few records for a result
Paulding County
No qualifying records yet
Perry County
No qualifying records yet
Pickaway County
Recorded, too few records for a result
Pike County
No qualifying records yet
Portage County
Recorded, too few records for a result
Preble County
Recorded, too few records for a result
Putnam County
No qualifying records yet
Richland County
Recorded, too few records for a result
Ross County
Recorded, too few records for a result
Sandusky County
No qualifying records yet
Scioto County
Recorded, too few records for a result
Seneca County
No qualifying records yet
Shelby County
No qualifying records yet
Stark County
24 · Season shown
Summit County
47 · 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
No qualifying records yet
Vinton County
Recorded, too few records for a result
Warren County
Recorded, too few records for a result
Washington County
Recorded, too few records for a result
Wayne County
Recorded, too few records for a result
Williams County
Recorded, too few records for a result
Wood County
Recorded, too few records for a result
Wyandot County
No qualifying records yet
No mapped range from the range source used, the USGS Gap Analysis Project, which maps land vertebrates only.
Season
When it is recorded
In Franklin County
Early March to late May, middle week Apr 12–18
Middle week · Apr 12–18
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Franklin County · records of all species each week, 95,840 in all
Records per week from 55 records in 8 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 52 dates. Latest record: June 2025.
Show as a table
Records of bird's-eye speedwell in Franklin County each week, and records of all species
Week
Records of bird's-eye speedwell
Years recorded
Records of all species
Jan 4–10
0
0
417
Jan 11–17
0
0
236
Jan 18–24
0
0
236
Jan 25–31
0
0
236
Feb 1–7
0
0
244
Feb 8–14
1
1
360
Feb 15–21
0
0
270
Feb 22–28
0
0
401
Mar 1–7
3
3
483
Mar 8–14
5
2
567
Mar 15–21
4
4
561
Mar 22–28
4
3
750
Mar 29 – Apr 4
4
4
1,310
Apr 5–11
4
3
1,456
Apr 12–18
9
3
2,408
Apr 19–25
4
3
2,525
Apr 26 – May 2
9
6
2,812
May 3–9
1
1
2,785
May 10–16
2
2
2,381
May 17–23
2
2
2,651
May 24–30
0
0
2,735
May 31 – Jun 6
2
1
2,861
Jun 7–13
1
1
2,986
Jun 14–20
0
0
2,980
Jun 21–27
0
0
3,051
Jun 28 – Jul 4
0
0
3,121
Jul 5–11
0
0
3,399
Jul 12–18
0
0
3,754
Jul 19–25
0
0
3,305
Jul 26 – Aug 1
0
0
3,347
Aug 2–8
0
0
3,803
Aug 9–15
0
0
3,507
Aug 16–22
0
0
3,137
Aug 23–29
0
0
3,249
Aug 30 – Sep 5
0
0
3,487
Sep 6–12
0
0
3,215
Sep 13–19
0
0
3,368
Sep 20–26
0
0
2,586
Sep 27 – Oct 3
0
0
3,624
Oct 4–10
0
0
2,701
Oct 11–17
0
0
2,107
Oct 18–24
0
0
1,201
Oct 25–31
0
0
1,123
Nov 1–7
0
0
789
Nov 8–14
0
0
798
Nov 15–21
0
0
468
Nov 22–28
0
0
522
Nov 29 – Dec 5
0
0
225
Dec 6–12
0
0
234
Dec 13–19
0
0
392
Dec 20–26
0
0
254
Dec 27 – Jan 2
0
0
422
Reported in flower
Only 5 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 March to late May, middle week Apr 12–18
Middle week · Apr 12–18
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 893 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 401 dates. Latest record: December 2025.
Show as a table
Records of bird's-eye speedwell in Ohio each week, and records of all species
Week
Records of bird's-eye speedwell
Years recorded
Records of all species
Jan 4–10
1
1
6,211
Jan 11–17
0
0
5,146
Jan 18–24
0
0
4,645
Jan 25–31
0
0
4,698
Feb 1–7
1
1
6,023
Feb 8–14
3
2
5,888
Feb 15–21
8
3
5,436
Feb 22–28
11
6
6,846
Mar 1–7
23
6
8,321
Mar 8–14
41
9
10,384
Mar 15–21
60
7
12,620
Mar 22–28
83
8
13,949
Mar 29 – Apr 4
108
8
19,661
Apr 5–11
102
8
26,860
Apr 12–18
119
9
39,925
Apr 19–25
76
10
41,623
Apr 26 – May 2
118
9
56,391
May 3–9
36
8
52,952
May 10–16
21
8
53,785
May 17–23
26
7
57,698
May 24–30
10
6
54,651
May 31 – Jun 6
7
3
53,099
Jun 7–13
5
3
53,700
Jun 14–20
5
2
56,625
Jun 21–27
1
1
55,361
Jun 28 – Jul 4
1
1
58,477
Jul 5–11
1
1
61,336
Jul 12–18
0
0
64,722
Jul 19–25
1
1
69,753
Jul 26 – Aug 1
2
2
59,416
Aug 2–8
2
2
59,712
Aug 9–15
1
1
55,994
Aug 16–22
1
1
54,328
Aug 23–29
2
2
51,772
Aug 30 – Sep 5
2
2
57,167
Sep 6–12
0
0
59,075
Sep 13–19
1
1
54,543
Sep 20–26
0
0
45,860
Sep 27 – Oct 3
1
1
43,180
Oct 4–10
1
1
37,841
Oct 11–17
1
1
30,824
Oct 18–24
4
2
21,156
Oct 25–31
0
0
19,021
Nov 1–7
1
1
14,172
Nov 8–14
1
1
12,621
Nov 15–21
2
2
7,965
Nov 22–28
0
0
8,136
Nov 29 – Dec 5
0
0
6,083
Dec 6–12
0
0
6,004
Dec 13–19
1
1
5,423
Dec 20–26
0
0
5,661
Dec 27 – Jan 2
2
1
8,459
Reported in flower
No flowering season shown here. The weeks are still too uncertain to show a season.
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.
Grey Field-speedwellVeronica politaOften confused in Ohio: 55 identifications in Ohio named one where the other was meant
Slender speedwellVeronica filiformisOften confused in Ohio: 43 identifications in Ohio named one where the other was meant
corn speedwellVeronica arvensisOften confused in Ohio: 11 identifications in Ohio named one where the other was meant
ground-ivyGlechoma hederaceaOften confused in Ohio: 11 identifications in Ohio named one where the other was meant
Germander SpeedwellVeronica chamaedrys1,006 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
84%49%
Farmland
8%11%
Forest
7%31%
Wetland
1%5%
Open water
0.5%3%
Barren
0.2%0.6%
From 615 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.
