Season shown in 3 of Ohio's 88 counties. Explore Ohio
No result yet (9)
Recorded, too few records for a result (64)
Recorded, season not shown (12)
Season shown (3)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
Butterweed 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
51 · Recorded, season not shown
Auglaize County
Recorded, too few records for a result
Belmont County
No qualifying records yet
Brown County
Recorded, too few records for a result
Butler County
44 · 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
50 · Season 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
41 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
Recorded, too few records for a result
Delaware County
32 · Recorded, season not shown
Erie County
Recorded, too few records for a result
Fairfield County
Recorded, too few records for a result
Fayette County
No qualifying records yet
Franklin County
152 · Recorded, season not shown
Fulton County
Recorded, too few records for a result
Gallia County
Recorded, too few records for a result
Geauga County
Recorded, too few records for a result
Greene County
38 · Recorded, season not shown
Guernsey County
Recorded, too few records for a result
Hamilton County
250 · Recorded, season not 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
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
No qualifying records yet
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
38 · Recorded, season not shown
Logan County
Recorded, too few records for a result
Lorain County
28 · Season shown
Lucas County
Recorded, too few records for a result
Madison County
Recorded, too few records for a result
Mahoning County
Recorded, too few records for a result
Marion County
Recorded, too few records for a result
Medina County
28 · 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
No qualifying records yet
Montgomery County
23 · 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
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
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
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
No qualifying records yet
Stark County
26 · Recorded, season not shown
Summit County
40 · 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
26 · Season shown
Washington County
Recorded, too few records for a result
Wayne County
Recorded, too few records for a result
Williams County
No qualifying records yet
Wood County
Recorded, too few records for a result
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 Licking County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 38 records in 8 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 Licking County · records of all species each week, 15,841 in all
Records per week from 38 records in 8 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 Butterweed in Licking County each week, and records of all species
Week
Records of Butterweed
Years recorded
Records of all species
Jan 4–10
0
0
18
Jan 11–17
0
0
23
Jan 18–24
0
0
15
Jan 25–31
1
1
11
Feb 1–7
0
0
21
Feb 8–14
0
0
25
Feb 15–21
0
0
12
Feb 22–28
0
0
46
Mar 1–7
0
0
50
Mar 8–14
0
0
73
Mar 15–21
3
3
102
Mar 22–28
0
0
68
Mar 29 – Apr 4
0
0
152
Apr 5–11
2
2
181
Apr 12–18
2
2
387
Apr 19–25
2
1
309
Apr 26 – May 2
3
3
368
May 3–9
4
4
313
May 10–16
2
2
359
May 17–23
8
7
420
May 24–30
3
3
391
May 31 – Jun 6
3
3
472
Jun 7–13
1
1
525
Jun 14–20
0
0
545
Jun 21–27
1
1
525
Jun 28 – Jul 4
0
0
601
Jul 5–11
0
0
882
Jul 12–18
0
0
852
Jul 19–25
0
0
572
Jul 26 – Aug 1
0
0
652
Aug 2–8
0
0
459
Aug 9–15
0
0
634
Aug 16–22
0
0
757
Aug 23–29
0
0
628
Aug 30 – Sep 5
0
0
531
Sep 6–12
0
0
822
Sep 13–19
1
1
489
Sep 20–26
0
0
492
Sep 27 – Oct 3
0
0
467
Oct 4–10
0
0
428
Oct 11–17
0
0
353
Oct 18–24
1
1
288
Oct 25–31
0
0
135
Nov 1–7
1
1
93
Nov 8–14
0
0
80
Nov 15–21
0
0
41
Nov 22–28
0
0
40
Nov 29 – Dec 5
0
0
39
Dec 6–12
0
0
16
Dec 13–19
0
0
20
Dec 20–26
0
0
16
Dec 27 – Jan 2
0
0
43
Reported in flower
Only 3 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-April to late June, 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 1,494 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 503 dates. Latest record: December 2025.
Show as a table
Records of Butterweed in Ohio each week, and records of all species
Week
Records of Butterweed
Years recorded
Records of all species
Jan 4–10
1
1
6,211
Jan 11–17
3
1
5,146
Jan 18–24
0
0
4,645
Jan 25–31
1
1
4,698
Feb 1–7
1
1
6,023
Feb 8–14
2
2
5,888
Feb 15–21
5
2
5,436
Feb 22–28
2
2
6,846
Mar 1–7
7
4
8,321
Mar 8–14
0
0
10,384
Mar 15–21
7
5
12,620
Mar 22–28
6
3
13,949
Mar 29 – Apr 4
10
4
19,661
Apr 5–11
20
6
26,860
Apr 12–18
33
8
39,925
Apr 19–25
81
9
41,623
Apr 26 – May 2
172
9
56,391
May 3–9
233
10
52,952
May 10–16
210
9
53,785
May 17–23
275
10
57,698
May 24–30
162
10
54,651
May 31 – Jun 6
87
8
53,099
Jun 7–13
50
8
53,700
Jun 14–20
37
5
56,625
Jun 21–27
16
5
55,361
Jun 28 – Jul 4
12
6
58,477
Jul 5–11
4
2
61,336
Jul 12–18
1
1
64,722
Jul 19–25
0
0
69,753
Jul 26 – Aug 1
1
1
59,416
Aug 2–8
0
0
59,712
Aug 9–15
0
0
55,994
Aug 16–22
3
2
54,328
Aug 23–29
2
1
51,772
Aug 30 – Sep 5
4
2
57,167
Sep 6–12
2
1
59,075
Sep 13–19
5
3
54,543
Sep 20–26
2
2
45,860
Sep 27 – Oct 3
5
3
43,180
Oct 4–10
4
3
37,841
Oct 11–17
4
3
30,824
Oct 18–24
4
3
21,156
Oct 25–31
2
2
19,021
Nov 1–7
1
1
14,172
Nov 8–14
4
3
12,621
Nov 15–21
1
1
7,965
Nov 22–28
2
1
8,136
Nov 29 – Dec 5
2
2
6,083
Dec 6–12
3
2
6,004
Dec 13–19
1
1
5,423
Dec 20–26
3
2
5,661
Dec 27 – Jan 2
1
1
8,459
Reported in flower
Usually reported in flower late April to late June, middle week May 17–23.
From 181 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.
golden ragwortPackera aureaOften confused in Ohio: 37 identifications in Ohio named one where the other was meant
roundleaf ragwortPackera obovataOften confused in Ohio: 16 identifications in Ohio named one where the other was meant
balsam ragwortPackera paupercula22 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
48%49%
Forest
36%31%
Farmland
10%11%
Wetland
4%5%
Open water
0.8%3%
Grassland and shrub
0.3%0.9%
Barren
0.1%0.6%
From 967 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.
