Harbinger of spring
Erigenia bulbosa (Michx.) Nutt.
Harbinger of spring in all of Ohio- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Apiales
- Family
- Apiaceae
- Genus
- Erigenia
Range
Where it is recorded
Season shown in 12 of Ohio's 88 counties. Explore Ohio
- No result yet (30)
- Recorded, too few records for a result (46)
- Recorded, season not shown (0)
- Season shown (12)
Counties as a table
| County | Records |
|---|---|
| Adams County | 23 · Season shown |
| 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 | 35 · Season shown |
| Auglaize County | No qualifying records yet |
| Belmont County | Recorded, too few records for a result |
| Brown County | Recorded, too few records for a result |
| Butler County | 33 · Season shown |
| Carroll County | No qualifying records yet |
| Champaign County | Recorded, too few records for a result |
| Clark County | Recorded, too few records for a result |
| Clermont County | 31 · Season shown |
| Clinton County | Recorded, too few records for a result |
| Columbiana County | No qualifying records yet |
| Coshocton County | No qualifying records yet |
| Crawford County | Recorded, too few records for a result |
| Cuyahoga County | 33 · Season 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 | No qualifying records yet |
| Franklin County | 39 · Season shown |
| Fulton County | Recorded, too few records for a result |
| Gallia County | No qualifying records yet |
| Geauga County | No qualifying records yet |
| Greene County | 34 · Season shown |
| Guernsey County | No qualifying records yet |
| Hamilton County | 145 · Season shown |
| Hancock County | 20 · Season shown |
| Hardin County | Recorded, too few records for a result |
| Harrison County | No qualifying records yet |
| 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 | No qualifying records yet |
| Huron County | No qualifying records yet |
| Jackson County | No qualifying records yet |
| Jefferson County | Recorded, too few records for a result |
| Knox County | No qualifying records yet |
| 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 | No qualifying records yet |
| Madison County | No qualifying records yet |
| Mahoning County | Recorded, too few records for a result |
| Marion County | No qualifying records yet |
| Medina County | 36 · Season shown |
| Meigs County | No qualifying records yet |
| 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 | 30 · Season shown |
| Morgan County | Recorded, too few records for a result |
| Morrow County | Recorded, too few records for a result |
| Muskingum County | No qualifying records yet |
| Noble County | Recorded, too few records for a result |
| Ottawa County | No qualifying records yet |
| 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 | No qualifying records yet |
| Portage County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Shelby County | No qualifying records yet |
| Stark County | Recorded, too few records for a result |
| Summit County | Recorded, too few records for a result |
| Trumbull County | No qualifying records yet |
| Tuscarawas County | No qualifying records yet |
| Union County | No qualifying records yet |
| Van Wert County | No qualifying records yet |
| Vinton County | Recorded, too few records for a result |
| Warren County | 23 · Season shown |
| 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 Warren County
Mid-February to early April, middle week Mar 22–28
Records per week from 23 records in 7 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 15 dates. Latest record: April 2025.
Show as a table
| Week | Records of harbinger of spring | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 108 |
| Jan 11–17 | 0 | 0 | 29 |
| Jan 18–24 | 0 | 0 | 28 |
| Jan 25–31 | 0 | 0 | 37 |
| Feb 1–7 | 0 | 0 | 23 |
| Feb 8–14 | 0 | 0 | 38 |
| Feb 15–21 | 2 | 1 | 66 |
| Feb 22–28 | 0 | 0 | 65 |
| Mar 1–7 | 0 | 0 | 53 |
| Mar 8–14 | 3 | 1 | 70 |
| Mar 15–21 | 1 | 1 | 116 |
| Mar 22–28 | 9 | 5 | 117 |
| Mar 29 – Apr 4 | 4 | 2 | 396 |
| Apr 5–11 | 3 | 2 | 254 |
| Apr 12–18 | 0 | 0 | 324 |
| Apr 19–25 | 0 | 0 | 336 |
| Apr 26 – May 2 | 1 | 1 | 539 |
| May 3–9 | 0 | 0 | 323 |
| May 10–16 | 0 | 0 | 423 |
| May 17–23 | 0 | 0 | 420 |
| May 24–30 | 0 | 0 | 378 |
| May 31 – Jun 6 | 0 | 0 | 696 |
| Jun 7–13 | 0 | 0 | 759 |
| Jun 14–20 | 0 | 0 | 727 |
| Jun 21–27 | 0 | 0 | 558 |
| Jun 28 – Jul 4 | 0 | 0 | 552 |
| Jul 5–11 | 0 | 0 | 695 |
| Jul 12–18 | 0 | 0 | 643 |
| Jul 19–25 | 0 | 0 | 564 |
| Jul 26 – Aug 1 | 0 | 0 | 530 |
| Aug 2–8 | 0 | 0 | 491 |
| Aug 9–15 | 0 | 0 | 720 |
| Aug 16–22 | 0 | 0 | 565 |
| Aug 23–29 | 0 | 0 | 534 |
| Aug 30 – Sep 5 | 0 | 0 | 719 |
| Sep 6–12 | 0 | 0 | 619 |
| Sep 13–19 | 0 | 0 | 584 |
| Sep 20–26 | 0 | 0 | 390 |
| Sep 27 – Oct 3 | 0 | 0 | 403 |
| Oct 4–10 | 0 | 0 | 264 |
| Oct 11–17 | 0 | 0 | 277 |
| Oct 18–24 | 0 | 0 | 266 |
| Oct 25–31 | 0 | 0 | 204 |
| Nov 1–7 | 0 | 0 | 159 |
| Nov 8–14 | 0 | 0 | 141 |
| Nov 15–21 | 0 | 0 | 78 |
| Nov 22–28 | 0 | 0 | 220 |
| Nov 29 – Dec 5 | 0 | 0 | 53 |
| Dec 6–12 | 0 | 0 | 58 |
| Dec 13–19 | 0 | 0 | 45 |
| Dec 20–26 | 0 | 0 | 75 |
| Dec 27 – Jan 2 | 0 | 0 | 140 |
Reported in flower
Only 4 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 mid-April, middle week Mar 22–28
Records per week from 946 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 325 dates. Latest record: May 2025.
Show as a table
| Week | Records of harbinger of spring | 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 | 2 | 2 | 5,888 |
| Feb 15–21 | 10 | 3 | 5,436 |
| Feb 22–28 | 33 | 6 | 6,846 |
| Mar 1–7 | 65 | 7 | 8,321 |
| Mar 8–14 | 83 | 10 | 10,384 |
| Mar 15–21 | 134 | 9 | 12,620 |
| Mar 22–28 | 200 | 10 | 13,949 |
| Mar 29 – Apr 4 | 166 | 9 | 19,661 |
| Apr 5–11 | 124 | 9 | 26,860 |
| Apr 12–18 | 66 | 9 | 39,925 |
| Apr 19–25 | 32 | 9 | 41,623 |
| Apr 26 – May 2 | 16 | 6 | 56,391 |
| May 3–9 | 7 | 5 | 52,952 |
| May 10–16 | 4 | 3 | 53,785 |
| May 17–23 | 1 | 1 | 57,698 |
| May 24–30 | 3 | 2 | 54,651 |
| May 31 – Jun 6 | 0 | 0 | 53,099 |
| Jun 7–13 | 0 | 0 | 53,700 |
| Jun 14–20 | 0 | 0 | 56,625 |
| Jun 21–27 | 0 | 0 | 55,361 |
| Jun 28 – Jul 4 | 0 | 0 | 58,477 |
| Jul 5–11 | 0 | 0 | 61,336 |
| Jul 12–18 | 0 | 0 | 64,722 |
| Jul 19–25 | 0 | 0 | 69,753 |
| Jul 26 – Aug 1 | 0 | 0 | 59,416 |
| Aug 2–8 | 0 | 0 | 59,712 |
| Aug 9–15 | 0 | 0 | 55,994 |
| Aug 16–22 | 0 | 0 | 54,328 |
| Aug 23–29 | 0 | 0 | 51,772 |
| Aug 30 – Sep 5 | 0 | 0 | 57,167 |
| Sep 6–12 | 0 | 0 | 59,075 |
| Sep 13–19 | 0 | 0 | 54,543 |
| Sep 20–26 | 0 | 0 | 45,860 |
| Sep 27 – Oct 3 | 0 | 0 | 43,180 |
| Oct 4–10 | 0 | 0 | 37,841 |
| Oct 11–17 | 0 | 0 | 30,824 |
| Oct 18–24 | 0 | 0 | 21,156 |
| Oct 25–31 | 0 | 0 | 19,021 |
| Nov 1–7 | 0 | 0 | 14,172 |
| Nov 8–14 | 0 | 0 | 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
No flowering season shown here. Most records come from a single year, so a season is not shown yet.
Reported in fruit
Only 18 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.
Identification
How to identify it
Often confused with
- hairy bittercress Cardamine hirsuta14 identifications worldwide named one where the other was meant
- false mermaid Floerkea proserpinacoides14 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: recorded
- Mar: recorded
- Apr: recorded
- May: recorded
- Jun: no record
- Jul: no record
- Aug: no record
- Sep: no record
- Oct: no record
- Nov: no record
- Dec: no record
Not reported in Ohio in June to January, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Forest | 82%31% |
| Developed | 13%49% |
| Wetland | 5%5% |
| Farmland | 0.4%11% |
From 510 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
- See it on iNaturalist (opens in a new tab)OpenPhenology is independent and not affiliated with iNaturalist.
Records behind the Warren County result
23 records from 1 dataset.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 23 recordsiNaturalist contributors, iNaturalist (2026). iNaturalist Research-grade Observations. iNaturalist.org. Occurrence dataset https://doi.org/10.15468/ab3s5x accessed via GBIF.org on 2026-11-13.
To cite: the GBIF download doi:10.15468/dl.y2jkt8 (opens in a new tab).
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.