- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Fagales
- Family
- Fagaceae
- Genus
- Quercus
Near Adams County
Range
Where it is recorded
Season shown in 0 of Ohio's 88 counties. Explore Ohio
- No result yet (73)
- Recorded, too few records for a result (13)
- Recorded, season not shown (2)
- Season shown (0)
Counties as a table
| County | Records |
|---|---|
| Adams County | 25 · Recorded, season not shown |
| Allen County | No qualifying records yet |
| Ashland County | No qualifying records yet |
| Ashtabula County | No qualifying records yet |
| Athens County | 26 · Recorded, season not shown |
| 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 | Recorded, too few records for a result |
| Clark County | No qualifying records yet |
| Clermont County | No qualifying records yet |
| 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 | No qualifying records yet |
| 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 | No qualifying records yet |
| Fulton County | No qualifying records yet |
| Gallia County | Recorded, too few records for a result |
| Geauga County | No qualifying records yet |
| Greene County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Holmes County | No qualifying records yet |
| Huron County | No qualifying records yet |
| Jackson County | Recorded, too few records for a result |
| Jefferson County | No qualifying records yet |
| Knox County | No qualifying records yet |
| Lake County | No qualifying records yet |
| Lawrence County | Recorded, too few records for a result |
| Licking County | No qualifying records yet |
| Logan County | No qualifying records yet |
| Lorain County | No qualifying records yet |
| Lucas County | No qualifying records yet |
| Madison County | Recorded, too few records for a result |
| Mahoning County | No qualifying records yet |
| Marion County | No qualifying records yet |
| Medina County | No qualifying records yet |
| Meigs County | Recorded, too few records for a result |
| Mercer County | No qualifying records yet |
| Miami County | No qualifying records yet |
| Monroe County | No qualifying records yet |
| Montgomery County | No qualifying records yet |
| Morgan County | No qualifying records yet |
| Morrow County | No qualifying records yet |
| Muskingum County | Recorded, too few records for a result |
| 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 | Recorded, too few records for a result |
| Pike County | No qualifying records yet |
| Portage County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Seneca County | No qualifying records yet |
| Shelby County | No qualifying records yet |
| Stark County | No qualifying records yet |
| Summit County | No qualifying records yet |
| Trumbull County | No qualifying records yet |
| Tuscarawas County | No qualifying records yet |
| Union County | Recorded, too few records for a result |
| Van Wert County | No qualifying records yet |
| Vinton County | Recorded, too few records for a result |
| Warren County | No qualifying records yet |
| Washington County | Recorded, too few records for a result |
| Wayne County | No qualifying records yet |
| 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 Adams County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 25 records in 6 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
Show over the bars
Records per week from 25 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
| Week | Records of post oak | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 7 |
| Jan 11–17 | 0 | 0 | 6 |
| Jan 18–24 | 0 | 0 | 5 |
| Jan 25–31 | 0 | 0 | 6 |
| Feb 1–7 | 0 | 0 | 17 |
| Feb 8–14 | 0 | 0 | 8 |
| Feb 15–21 | 0 | 0 | 7 |
| Feb 22–28 | 0 | 0 | 13 |
| Mar 1–7 | 1 | 1 | 78 |
| Mar 8–14 | 0 | 0 | 65 |
| Mar 15–21 | 0 | 0 | 110 |
| Mar 22–28 | 1 | 1 | 139 |
| Mar 29 – Apr 4 | 0 | 0 | 243 |
| Apr 5–11 | 0 | 0 | 417 |
| Apr 12–18 | 0 | 0 | 599 |
| Apr 19–25 | 0 | 0 | 402 |
| Apr 26 – May 2 | 0 | 0 | 687 |
| May 3–9 | 0 | 0 | 520 |
| May 10–16 | 0 | 0 | 320 |
| May 17–23 | 0 | 0 | 258 |
| May 24–30 | 0 | 0 | 368 |
| May 31 – Jun 6 | 2 | 2 | 300 |
| Jun 7–13 | 0 | 0 | 221 |
| Jun 14–20 | 0 | 0 | 196 |
| Jun 21–27 | 1 | 1 | 386 |
| Jun 28 – Jul 4 | 0 | 0 | 420 |
| Jul 5–11 | 1 | 1 | 510 |
| Jul 12–18 | 0 | 0 | 643 |
| Jul 19–25 | 0 | 0 | 757 |
| Jul 26 – Aug 1 | 0 | 0 | 248 |
| Aug 2–8 | 5 | 3 | 780 |
| Aug 9–15 | 0 | 0 | 453 |
| Aug 16–22 | 1 | 1 | 428 |
| Aug 23–29 | 2 | 2 | 432 |
| Aug 30 – Sep 5 | 1 | 1 | 447 |
| Sep 6–12 | 6 | 1 | 236 |
| Sep 13–19 | 1 | 1 | 324 |
| Sep 20–26 | 0 | 0 | 308 |
| Sep 27 – Oct 3 | 0 | 0 | 114 |
| Oct 4–10 | 0 | 0 | 98 |
| Oct 11–17 | 0 | 0 | 106 |
| Oct 18–24 | 0 | 0 | 51 |
| Oct 25–31 | 0 | 0 | 119 |
| Nov 1–7 | 0 | 0 | 83 |
| Nov 8–14 | 0 | 0 | 81 |
| Nov 15–21 | 0 | 0 | 7 |
| Nov 22–28 | 0 | 0 | 6 |
| Nov 29 – Dec 5 | 0 | 0 | 92 |
| Dec 6–12 | 2 | 2 | 40 |
| Dec 13–19 | 0 | 0 | 11 |
| Dec 20–26 | 0 | 0 | 3 |
| Dec 27 – Jan 2 | 1 | 1 | 25 |
Reported in flower
No records here show flowers yet, so there is no flowering season to show. 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 137 records in 9 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
This week · Nov 8–14
Show over the bars
Records per week from 137 records in 9 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 post oak | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 1 | 1 | 6,211 |
| Jan 11–17 | 1 | 1 | 5,146 |
| Jan 18–24 | 0 | 0 | 4,645 |
| Jan 25–31 | 1 | 1 | 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 | 4 | 2 | 8,321 |
| Mar 8–14 | 1 | 1 | 10,384 |
| Mar 15–21 | 0 | 0 | 12,620 |
| Mar 22–28 | 3 | 2 | 13,949 |
| Mar 29 – Apr 4 | 2 | 2 | 19,661 |
| Apr 5–11 | 0 | 0 | 26,860 |
| Apr 12–18 | 1 | 1 | 39,925 |
| Apr 19–25 | 1 | 1 | 41,623 |
| Apr 26 – May 2 | 1 | 1 | 56,391 |
| May 3–9 | 2 | 2 | 52,952 |
| May 10–16 | 1 | 1 | 53,785 |
| May 17–23 | 3 | 3 | 57,698 |
| May 24–30 | 5 | 5 | 54,651 |
| May 31 – Jun 6 | 2 | 2 | 53,099 |
| Jun 7–13 | 6 | 4 | 53,700 |
| Jun 14–20 | 1 | 1 | 56,625 |
| Jun 21–27 | 1 | 1 | 55,361 |
| Jun 28 – Jul 4 | 1 | 1 | 58,477 |
| Jul 5–11 | 9 | 4 | 61,336 |
| Jul 12–18 | 3 | 1 | 64,722 |
| Jul 19–25 | 2 | 1 | 69,753 |
| Jul 26 – Aug 1 | 5 | 3 | 59,416 |
| Aug 2–8 | 12 | 6 | 59,712 |
| Aug 9–15 | 3 | 3 | 55,994 |
| Aug 16–22 | 3 | 3 | 54,328 |
| Aug 23–29 | 2 | 2 | 51,772 |
| Aug 30 – Sep 5 | 6 | 4 | 57,167 |
| Sep 6–12 | 7 | 2 | 59,075 |
| Sep 13–19 | 10 | 5 | 54,543 |
| Sep 20–26 | 5 | 3 | 45,860 |
| Sep 27 – Oct 3 | 1 | 1 | 43,180 |
| Oct 4–10 | 6 | 3 | 37,841 |
| Oct 11–17 | 0 | 0 | 30,824 |
| Oct 18–24 | 2 | 1 | 21,156 |
| Oct 25–31 | 4 | 2 | 19,021 |
| Nov 1–7 | 4 | 1 | 14,172 |
| Nov 8–14 | 2 | 2 | 12,621 |
| Nov 15–21 | 4 | 2 | 7,965 |
| Nov 22–28 | 1 | 1 | 8,136 |
| Nov 29 – Dec 5 | 2 | 2 | 6,083 |
| Dec 6–12 | 2 | 2 | 6,004 |
| Dec 13–19 | 0 | 0 | 5,423 |
| Dec 20–26 | 2 | 2 | 5,661 |
| Dec 27 – Jan 2 | 2 | 2 | 8,459 |
Reported in flower
No records here show flowers yet, so there is no flowering season to show. 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
Look-alikes
When
Land cover
Often confused with
- white oak Quercus albaOften confused in Ohio: 20 identifications in Ohio named one where the other was meant
- bur oak Quercus macrocarpa350 identifications worldwide named one where the other was meant
- blackjack oak Quercus marilandica349 identifications worldwide named one where the other was meant
- black oak Quercus velutina112 identifications worldwide named one where the other was meant
- Shumard oak Quercus shumardii18 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: recorded
- Feb: no record
- Mar: recorded
- Apr: recorded
- May: recorded
- Jun: recorded
- Jul: recorded
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: recorded
- Dec: recorded
Not reported in Ohio in February, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Forest | 57%31% |
| Developed | 25%49% |
| Farmland | 17%11% |
| Wetland | 1%5% |
From 76 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
137 records from 1 dataset.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 137 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.