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 0 of Ohio's 88 counties. Explore Ohio
No result yet (72)
Recorded, too few records for a result (15)
Recorded, season not shown (1)
Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
viper's-bugloss by Ohio county: records and mapped range
County
Records
Adams County
No qualifying records yet
Allen County
No qualifying records yet
Ashland County
No qualifying records yet
Ashtabula County
Recorded, too few records for a result
Athens County
No qualifying records yet
Auglaize County
No qualifying records yet
Belmont County
No qualifying records yet
Brown County
No qualifying records yet
Butler County
No qualifying records yet
Carroll County
No qualifying records yet
Champaign County
No qualifying records yet
Clark County
Recorded, too few records for a result
Clermont County
No qualifying records yet
Clinton County
No qualifying records yet
Columbiana County
Recorded, too few records for a result
Coshocton County
No qualifying records yet
Crawford County
No qualifying records yet
Cuyahoga County
Recorded, too few records for a result
Darke County
No qualifying records yet
Defiance County
No qualifying records yet
Delaware County
No qualifying records yet
Erie County
No qualifying records yet
Fairfield County
No qualifying records yet
Fayette County
No qualifying records yet
Franklin County
Recorded, too few records for a result
Fulton County
No qualifying records yet
Gallia County
No qualifying records yet
Geauga County
No qualifying records yet
Greene County
44 · Recorded, season not shown
Guernsey County
No qualifying records yet
Hamilton County
No qualifying records yet
Hancock County
No qualifying records yet
Hardin County
No qualifying records yet
Harrison County
No qualifying records yet
Henry County
No qualifying records yet
Highland County
No qualifying records yet
Hocking County
No qualifying records yet
Holmes County
No qualifying records yet
Huron County
No qualifying records yet
Jackson County
No qualifying records yet
Jefferson County
No qualifying records yet
Knox County
Recorded, too few records for a result
Lake County
Recorded, too few records for a result
Lawrence County
No qualifying records yet
Licking County
No qualifying records yet
Logan County
No qualifying records yet
Lorain County
Recorded, too few records for a result
Lucas County
No qualifying records yet
Madison County
Recorded, too few records for a result
Mahoning County
Recorded, too few records for a result
Marion County
No qualifying records yet
Medina County
No qualifying records yet
Meigs County
No qualifying records yet
Mercer County
No qualifying records yet
Miami County
No qualifying records yet
Monroe County
No qualifying records yet
Montgomery County
Recorded, too few records for a result
Morgan County
No qualifying records yet
Morrow County
No qualifying records yet
Muskingum County
No qualifying records yet
Noble County
No qualifying records yet
Ottawa County
No qualifying records yet
Paulding County
No qualifying records yet
Perry County
No qualifying records yet
Pickaway County
No qualifying records yet
Pike County
No qualifying records yet
Portage County
Recorded, too few records for a result
Preble County
No qualifying records yet
Putnam County
No qualifying records yet
Richland County
No qualifying records yet
Ross County
No qualifying records yet
Sandusky County
No qualifying records yet
Scioto County
No qualifying records yet
Seneca County
No qualifying records yet
Shelby County
No qualifying records yet
Stark County
No qualifying records yet
Summit County
Recorded, too few records for a result
Trumbull County
Recorded, too few records for a result
Tuscarawas County
No qualifying records yet
Union County
No qualifying records yet
Van Wert County
No qualifying records yet
Vinton County
No qualifying records yet
Warren County
No qualifying records yet
Washington County
No qualifying records yet
Wayne County
Recorded, too few records for a result
Williams County
No qualifying records yet
Wood County
No qualifying records yet
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 Greene County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 44 records in 7 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 Greene County · records of all species each week, 31,407 in all
Records per week from 44 records in 7 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 viper's-bugloss in Greene County each week, and records of all species
Week
Records of viper's-bugloss
Years recorded
Records of all species
Jan 4–10
0
0
97
Jan 11–17
0
0
49
Jan 18–24
0
0
37
Jan 25–31
0
0
55
Feb 1–7
0
0
82
Feb 8–14
0
0
90
Feb 15–21
0
0
186
Feb 22–28
0
0
151
Mar 1–7
0
0
124
Mar 8–14
0
0
238
Mar 15–21
0
0
299
Mar 22–28
0
0
338
Mar 29 – Apr 4
0
0
561
Apr 5–11
0
0
537
Apr 12–18
0
0
738
Apr 19–25
0
0
793
Apr 26 – May 2
0
0
1,090
May 3–9
0
0
778
May 10–16
0
0
721
May 17–23
0
0
889
May 24–30
1
1
932
May 31 – Jun 6
2
2
889
Jun 7–13
2
1
1,186
Jun 14–20
10
4
1,205
Jun 21–27
7
4
1,059
Jun 28 – Jul 4
4
2
1,150
Jul 5–11
3
2
1,279
Jul 12–18
2
2
1,164
Jul 19–25
2
2
1,228
Jul 26 – Aug 1
1
1
1,533
Aug 2–8
1
1
1,324
Aug 9–15
2
2
1,105
Aug 16–22
3
3
957
Aug 23–29
0
0
942
Aug 30 – Sep 5
0
0
932
Sep 6–12
2
2
992
Sep 13–19
0
0
1,194
Sep 20–26
1
1
870
Sep 27 – Oct 3
0
0
677
Oct 4–10
0
0
614
Oct 11–17
0
0
533
Oct 18–24
0
0
305
Oct 25–31
0
0
307
Nov 1–7
1
1
214
Nov 8–14
0
0
227
Nov 15–21
0
0
155
Nov 22–28
0
0
110
Nov 29 – Dec 5
0
0
86
Dec 6–12
0
0
36
Dec 13–19
0
0
46
Dec 20–26
0
0
117
Dec 27 – Jan 2
0
0
186
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
Not enough evidence
The weeks are still too uncertain to show a season. Based on 164 records in 10 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
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 164 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 viper's-bugloss in Ohio each week, and records of all species
Week
Records of viper's-bugloss
Years recorded
Records of all species
Jan 4–10
0
0
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
0
0
6,023
Feb 8–14
0
0
5,888
Feb 15–21
0
0
5,436
Feb 22–28
0
0
6,846
Mar 1–7
0
0
8,321
Mar 8–14
0
0
10,384
Mar 15–21
0
0
12,620
Mar 22–28
0
0
13,949
Mar 29 – Apr 4
0
0
19,661
Apr 5–11
0
0
26,860
Apr 12–18
0
0
39,925
Apr 19–25
0
0
41,623
Apr 26 – May 2
0
0
56,391
May 3–9
0
0
52,952
May 10–16
0
0
53,785
May 17–23
0
0
57,698
May 24–30
4
3
54,651
May 31 – Jun 6
8
5
53,099
Jun 7–13
10
4
53,700
Jun 14–20
23
7
56,625
Jun 21–27
21
8
55,361
Jun 28 – Jul 4
22
7
58,477
Jul 5–11
24
8
61,336
Jul 12–18
9
5
64,722
Jul 19–25
9
8
69,753
Jul 26 – Aug 1
3
1
59,416
Aug 2–8
5
5
59,712
Aug 9–15
4
3
55,994
Aug 16–22
4
3
54,328
Aug 23–29
2
1
51,772
Aug 30 – Sep 5
0
0
57,167
Sep 6–12
4
3
59,075
Sep 13–19
0
0
54,543
Sep 20–26
3
2
45,860
Sep 27 – Oct 3
0
0
43,180
Oct 4–10
2
2
37,841
Oct 11–17
2
2
30,824
Oct 18–24
1
1
21,156
Oct 25–31
0
0
19,021
Nov 1–7
3
2
14,172
Nov 8–14
1
1
12,621
Nov 15–21
0
0
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
0
0
5,423
Dec 20–26
0
0
5,661
Dec 27 – Jan 2
0
0
8,459
Reported in flower
Only 17 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.
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.
great blue lobeliaLobelia siphilitica27 identifications worldwide named one where the other was meant
ribwort plantainPlantago lanceolata24 identifications worldwide named one where the other was meant
chicoryCichorium intybus23 identifications worldwide named one where the other was meant
Lacy phaceliaPhacelia tanacetifolia17 identifications worldwide named one where the other was meant
BorageBorago officinalis12 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.
Months not reported
Jan: no record
Feb: no record
Mar: no record
Apr: no record
May: recorded
Jun: recorded
Jul: recorded
Aug: recorded
Sep: recorded
Oct: recorded
Nov: recorded
Dec: no record
Not reported in Ohio in December to April, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
48%49%
Barren
41%0.6%
Forest
6%31%
Farmland
4%11%
Grassland and shrub
1%0.9%
From 83 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.
