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 2 of Ohio's 88 counties. Explore Ohio
No result yet (2)
Recorded, too few records for a result (57)
Recorded, season not shown (27)
Season shown (2)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
ground-ivy 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
432 · 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
187 · Recorded, season not shown
Carroll County
Recorded, too few records for a result
Champaign County
Recorded, too few records for a result
Clark County
36 · Recorded, season not shown
Clermont County
76 · Recorded, season not shown
Clinton County
Recorded, too few records for a result
Columbiana County
42 · Recorded, season not shown
Coshocton County
Recorded, too few records for a result
Crawford County
Recorded, too few records for a result
Cuyahoga County
180 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
55 · Recorded, season not shown
Erie County
32 · Recorded, season not shown
Fairfield County
Recorded, too few records for a result
Fayette County
Recorded, too few records for a result
Franklin County
242 · Season shown
Fulton County
Recorded, too few records for a result
Gallia County
24 · Recorded, season not shown
Geauga County
Recorded, too few records for a result
Greene County
61 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
221 · 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
28 · 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
28 · Recorded, season not shown
Lawrence County
Recorded, too few records for a result
Licking County
52 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
78 · Recorded, season not shown
Lucas County
105 · Recorded, season not shown
Madison County
Recorded, too few records for a result
Mahoning County
50 · Recorded, season not shown
Marion County
Recorded, too few records for a result
Medina County
21 · Recorded, season not shown
Meigs County
Recorded, too few records for a result
Mercer County
No qualifying records yet
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
76 · Recorded, season not shown
Preble County
Recorded, too few records for a result
Putnam County
Recorded, too few records for a result
Richland County
22 · Recorded, season not shown
Ross County
Recorded, too few records for a result
Sandusky County
Recorded, too few records for a result
Scioto County
21 · Recorded, season not shown
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
207 · 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
40 · Recorded, season not shown
Washington County
Recorded, too few records for a result
Wayne County
29 · Recorded, season not shown
Williams County
Recorded, too few records for a result
Wood County
47 · 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 Columbiana County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 42 records in 6 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 Columbiana County · records of all species each week, 5,719 in all
Records per week from 42 records in 6 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 ground-ivy in Columbiana County each week, and records of all species
Week
Records of ground-ivy
Years recorded
Records of all species
Jan 4–10
0
0
12
Jan 11–17
0
0
7
Jan 18–24
0
0
1
Jan 25–31
0
0
16
Feb 1–7
0
0
4
Feb 8–14
0
0
41
Feb 15–21
0
0
9
Feb 22–28
0
0
27
Mar 1–7
0
0
28
Mar 8–14
0
0
25
Mar 15–21
0
0
55
Mar 22–28
0
0
94
Mar 29 – Apr 4
0
0
82
Apr 5–11
2
1
97
Apr 12–18
2
1
159
Apr 19–25
4
4
183
Apr 26 – May 2
1
1
207
May 3–9
15
3
213
May 10–16
1
1
187
May 17–23
11
3
332
May 24–30
1
1
201
May 31 – Jun 6
1
1
200
Jun 7–13
1
1
166
Jun 14–20
0
0
159
Jun 21–27
1
1
174
Jun 28 – Jul 4
0
0
248
Jul 5–11
1
1
234
Jul 12–18
0
0
306
Jul 19–25
0
0
188
Jul 26 – Aug 1
0
0
262
Aug 2–8
0
0
139
Aug 9–15
0
0
157
Aug 16–22
0
0
165
Aug 23–29
0
0
117
Aug 30 – Sep 5
0
0
171
Sep 6–12
0
0
126
Sep 13–19
0
0
197
Sep 20–26
1
1
99
Sep 27 – Oct 3
0
0
100
Oct 4–10
0
0
102
Oct 11–17
0
0
94
Oct 18–24
0
0
77
Oct 25–31
0
0
39
Nov 1–7
0
0
45
Nov 8–14
0
0
50
Nov 15–21
0
0
25
Nov 22–28
0
0
28
Nov 29 – Dec 5
0
0
22
Dec 6–12
0
0
12
Dec 13–19
0
0
12
Dec 20–26
0
0
14
Dec 27 – Jan 2
0
0
11
Reported in flower
Only 2 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-October, middle week May 10–16
Middle week · May 10–16
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 3,685 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 1,109 dates. Latest record: December 2025.
Show as a table
Records of ground-ivy in Ohio each week, and records of all species
Week
Records of ground-ivy
Years recorded
Records of all species
Jan 4–10
1
1
6,211
Jan 11–17
4
3
5,146
Jan 18–24
4
3
4,645
Jan 25–31
3
2
4,698
Feb 1–7
5
1
6,023
Feb 8–14
3
2
5,888
Feb 15–21
3
2
5,436
Feb 22–28
0
0
6,846
Mar 1–7
5
4
8,321
Mar 8–14
10
6
10,384
Mar 15–21
21
7
12,620
Mar 22–28
45
7
13,949
Mar 29 – Apr 4
81
7
19,661
Apr 5–11
183
9
26,860
Apr 12–18
287
8
39,925
Apr 19–25
297
10
41,623
Apr 26 – May 2
427
10
56,391
May 3–9
380
10
52,952
May 10–16
278
9
53,785
May 17–23
343
10
57,698
May 24–30
251
10
54,651
May 31 – Jun 6
103
10
53,099
Jun 7–13
57
9
53,700
Jun 14–20
33
6
56,625
Jun 21–27
25
6
55,361
Jun 28 – Jul 4
16
7
58,477
Jul 5–11
29
7
61,336
Jul 12–18
20
6
64,722
Jul 19–25
13
6
69,753
Jul 26 – Aug 1
16
7
59,416
Aug 2–8
31
8
59,712
Aug 9–15
27
8
55,994
Aug 16–22
21
7
54,328
Aug 23–29
36
7
51,772
Aug 30 – Sep 5
72
7
57,167
Sep 6–12
72
7
59,075
Sep 13–19
65
9
54,543
Sep 20–26
38
7
45,860
Sep 27 – Oct 3
52
8
43,180
Oct 4–10
69
8
37,841
Oct 11–17
78
9
30,824
Oct 18–24
27
8
21,156
Oct 25–31
31
6
19,021
Nov 1–7
18
8
14,172
Nov 8–14
18
10
12,621
Nov 15–21
17
6
7,965
Nov 22–28
14
7
8,136
Nov 29 – Dec 5
11
7
6,083
Dec 6–12
20
7
6,004
Dec 13–19
10
5
5,423
Dec 20–26
7
5
5,661
Dec 27 – Jan 2
8
5
8,459
Reported in flower
Usually reported in flower late March to late May, middle week Apr 26 – May 2.
From 263 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 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.
red deadnettleLamium purpureumOften confused in Ohio: 42 identifications in Ohio named one where the other was meant
garlic mustardAlliaria petiolataOften confused in Ohio: 40 identifications in Ohio named one where the other was meant
henbit deadnettleLamium amplexicauleOften confused in Ohio: 25 identifications in Ohio named one where the other was meant
carpet bugleAjuga reptansOften confused in Ohio: 25 identifications in Ohio 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
70%49%
Forest
20%31%
Farmland
8%11%
Wetland
2%5%
Grassland and shrub
0.2%0.9%
Open water
0.2%3%
Barren
0%0.6%
From 2,521 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.
