Twinleaf
Jeffersonia diphylla (L.) Pers.
Twinleaf in all of Ohio- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Ranunculales
- Family
- Berberidaceae
- Genus
- Jeffersonia
Range
Where it is recorded
Season shown in 1 of Ohio's 88 counties. Explore Ohio
- No result yet (44)
- Recorded, too few records for a result (37)
- Recorded, season not shown (6)
- Season shown (1)
Counties as a table
| County | Records |
|---|---|
| Adams County | 53 · Recorded, season not shown |
| Allen County | No qualifying records yet |
| Ashland County | No qualifying records yet |
| Ashtabula County | No qualifying records yet |
| Athens County | 35 · Recorded, season not shown |
| Auglaize County | No qualifying records yet |
| Belmont County | No qualifying records yet |
| Brown County | No qualifying records yet |
| Butler County | Recorded, too few records for a result |
| Carroll County | No qualifying records yet |
| Champaign County | Recorded, too few records for a result |
| Clark County | No qualifying records yet |
| Clermont County | 31 · Recorded, season not shown |
| Clinton County | No qualifying records yet |
| Columbiana County | No qualifying records yet |
| Coshocton County | No qualifying records yet |
| Crawford County | No qualifying records yet |
| Cuyahoga County | 45 · 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 | No qualifying records yet |
| Franklin County | 33 · Recorded, season not shown |
| Fulton County | No qualifying records yet |
| Gallia County | No qualifying records yet |
| Geauga County | Recorded, too few records for a result |
| Greene County | 41 · Season shown |
| Guernsey County | No qualifying records yet |
| Hamilton County | Recorded, too few records for a result |
| Hancock County | No qualifying records yet |
| Hardin County | Recorded, too few records for a result |
| Harrison County | No qualifying records yet |
| Henry County | No qualifying records yet |
| Highland County | 22 · Recorded, season not shown |
| Hocking County | Recorded, too few records for a result |
| Holmes County | No qualifying records yet |
| Huron County | Recorded, too few records for a result |
| Jackson County | No qualifying records yet |
| Jefferson County | No qualifying records yet |
| 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 | No qualifying records yet |
| 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 | 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 | 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 | No qualifying records yet |
| Ross County | Recorded, too few records for a result |
| Sandusky County | No qualifying records yet |
| Scioto County | No qualifying records yet |
| Seneca County | No qualifying records yet |
| Shelby County | Recorded, too few records for a result |
| Stark County | Recorded, too few records for a result |
| 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 | 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 | 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 Highland County
Not enough evidence
Records per week from 22 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
| Week | Records of twinleaf | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 11 |
| Jan 11–17 | 0 | 0 | 2 |
| Jan 18–24 | 0 | 0 | 8 |
| Jan 25–31 | 0 | 0 | 1 |
| Feb 1–7 | 0 | 0 | 30 |
| Feb 8–14 | 0 | 0 | 3 |
| Feb 15–21 | 0 | 0 | 4 |
| Feb 22–28 | 0 | 0 | 33 |
| Mar 1–7 | 0 | 0 | 24 |
| Mar 8–14 | 0 | 0 | 8 |
| Mar 15–21 | 0 | 0 | 7 |
| Mar 22–28 | 0 | 0 | 38 |
| Mar 29 – Apr 4 | 1 | 1 | 67 |
| Apr 5–11 | 2 | 2 | 137 |
| Apr 12–18 | 8 | 4 | 597 |
| Apr 19–25 | 3 | 1 | 491 |
| Apr 26 – May 2 | 1 | 1 | 275 |
| May 3–9 | 0 | 0 | 116 |
| May 10–16 | 0 | 0 | 118 |
| May 17–23 | 3 | 3 | 215 |
| May 24–30 | 0 | 0 | 86 |
| May 31 – Jun 6 | 1 | 1 | 76 |
| Jun 7–13 | 0 | 0 | 50 |
| Jun 14–20 | 0 | 0 | 104 |
| Jun 21–27 | 1 | 1 | 83 |
| Jun 28 – Jul 4 | 0 | 0 | 201 |
| Jul 5–11 | 0 | 0 | 68 |
| Jul 12–18 | 1 | 1 | 1,237 |
| Jul 19–25 | 0 | 0 | 4,078 |
| Jul 26 – Aug 1 | 0 | 0 | 278 |
| Aug 2–8 | 0 | 0 | 58 |
| Aug 9–15 | 0 | 0 | 66 |
| Aug 16–22 | 0 | 0 | 54 |
| Aug 23–29 | 0 | 0 | 151 |
| Aug 30 – Sep 5 | 0 | 0 | 204 |
| Sep 6–12 | 0 | 0 | 716 |
| Sep 13–19 | 0 | 0 | 100 |
| Sep 20–26 | 0 | 0 | 52 |
| Sep 27 – Oct 3 | 0 | 0 | 48 |
| Oct 4–10 | 0 | 0 | 40 |
| Oct 11–17 | 1 | 1 | 215 |
| Oct 18–24 | 0 | 0 | 35 |
| Oct 25–31 | 0 | 0 | 18 |
| Nov 1–7 | 0 | 0 | 11 |
| Nov 8–14 | 0 | 0 | 44 |
| Nov 15–21 | 0 | 0 | 16 |
| Nov 22–28 | 0 | 0 | 2 |
| Nov 29 – Dec 5 | 0 | 0 | 19 |
| Dec 6–12 | 0 | 0 | 3 |
| Dec 13–19 | 0 | 0 | 43 |
| Dec 20–26 | 0 | 0 | 13 |
| Dec 27 – Jan 2 | 0 | 0 | 19 |
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
Only 2 records here show fruit, too few to show a fruiting season. One needs at least 20 records from 5 different years.
In Ohio
Late March to late June, middle week Apr 19–25
Records per week from 637 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 330 dates. Latest record: August 2025.
Show as a table
| Week | Records of twinleaf | 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 | 9 | 4 | 13,949 |
| Mar 29 – Apr 4 | 42 | 7 | 19,661 |
| Apr 5–11 | 92 | 9 | 26,860 |
| Apr 12–18 | 128 | 9 | 39,925 |
| Apr 19–25 | 85 | 9 | 41,623 |
| Apr 26 – May 2 | 81 | 10 | 56,391 |
| May 3–9 | 47 | 9 | 52,952 |
| May 10–16 | 27 | 9 | 53,785 |
| May 17–23 | 21 | 7 | 57,698 |
| May 24–30 | 26 | 8 | 54,651 |
| May 31 – Jun 6 | 14 | 5 | 53,099 |
| Jun 7–13 | 15 | 7 | 53,700 |
| Jun 14–20 | 10 | 5 | 56,625 |
| Jun 21–27 | 4 | 4 | 55,361 |
| Jun 28 – Jul 4 | 9 | 3 | 58,477 |
| Jul 5–11 | 3 | 2 | 61,336 |
| Jul 12–18 | 3 | 3 | 64,722 |
| Jul 19–25 | 5 | 4 | 69,753 |
| Jul 26 – Aug 1 | 4 | 4 | 59,416 |
| Aug 2–8 | 1 | 1 | 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 | 3 | 3 | 59,075 |
| Sep 13–19 | 1 | 1 | 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 | 1 | 1 | 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
Usually reported in flower late March to mid-April, middle week Apr 12–18.
From 72 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
Usually reported in fruit early April to early June, middle week May 3–9.
From 44 records that show fruit. Not every photo of a plant in fruit is marked as fruiting, so this shows when people reported it in fruit, not when it fruits.
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
- bloodroot Sanguinaria canadensisOften confused in Ohio: 19 identifications in Ohio named one where the other was meant
- mayapple Podophyllum peltatum20 identifications worldwide named one where the other was meant
- rue anemone Thalictrum thalictroides10 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: recorded
- Apr: recorded
- May: recorded
- Jun: recorded
- Jul: recorded
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: no record
- Dec: no record
Not reported in Ohio in November to February, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Forest | 82%31% |
| Developed | 14%49% |
| Wetland | 2%5% |
| Farmland | 1%11% |
From 343 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 Ohio result
637 records from 2 datasets.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 636 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.
- iNaturalist observations (opens in a new tab) · iNaturalist.org · 1 recordiNaturalist. Available from https://www.inaturalist.org. Accessed 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.