- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Liliopsida
- Order
- Poales
- Family
- Cyperaceae
- Genus
- Carex
Range
Where it is recorded
Season shown in 1 of Ohio's 88 counties. Explore Ohio
- No result yet (25)
- Recorded, too few records for a result (56)
- Recorded, season not shown (6)
- Season shown (1)
Counties as a table
| 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 | 29 · 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 | No qualifying records yet |
| Clark County | No qualifying records yet |
| Clermont County | 20 · Recorded, season not 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 | 40 · Recorded, season not shown |
| Darke County | Recorded, too few records for a result |
| Defiance County | No qualifying records yet |
| Delaware County | 21 · Recorded, season not shown |
| Erie County | No qualifying records yet |
| Fairfield County | Recorded, too few records for a result |
| Fayette County | Recorded, too few records for a result |
| Franklin County | 42 · Season shown |
| Fulton County | Recorded, too few records for a result |
| Gallia County | No qualifying records yet |
| Geauga County | Recorded, too few records for a result |
| Greene County | Recorded, too few records for a result |
| Guernsey County | Recorded, too few records for a result |
| Hamilton County | Recorded, too few records for a result |
| Hancock County | Recorded, too few records for a result |
| Hardin County | No qualifying records yet |
| 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 | No qualifying records yet |
| Holmes County | Recorded, too few records for a result |
| Huron County | No qualifying records yet |
| 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 | Recorded, too few records for a result |
| Logan County | No qualifying records yet |
| Lorain County | 24 · Recorded, season not 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 | Recorded, too few records for a result |
| Meigs County | No qualifying records yet |
| Mercer County | Recorded, too few records for a result |
| Miami County | No qualifying records yet |
| Monroe County | No qualifying records yet |
| Montgomery County | Recorded, too few records for a result |
| Morgan County | No qualifying records yet |
| Morrow County | Recorded, too few records for a result |
| Muskingum County | Recorded, too few records for a result |
| Noble County | No qualifying records yet |
| Ottawa County | Recorded, too few records for a result |
| Paulding County | Recorded, too few records for a result |
| Perry County | No qualifying records yet |
| Pickaway County | Recorded, too few records for a result |
| Pike County | No qualifying records yet |
| Portage County | Recorded, too few records for a result |
| Preble County | Recorded, too few records for a result |
| Putnam County | Recorded, too few records for a result |
| 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 | No qualifying records yet |
| 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 | 22 · 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 | Recorded, too few records for a result |
| Washington County | No qualifying records yet |
| 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 | 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 Delaware County
Not enough evidence
Records per week from 21 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 Gray's sedge | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 75 |
| Jan 11–17 | 0 | 0 | 35 |
| Jan 18–24 | 0 | 0 | 37 |
| Jan 25–31 | 0 | 0 | 28 |
| Feb 1–7 | 0 | 0 | 33 |
| Feb 8–14 | 0 | 0 | 56 |
| Feb 15–21 | 0 | 0 | 38 |
| Feb 22–28 | 0 | 0 | 36 |
| Mar 1–7 | 0 | 0 | 73 |
| Mar 8–14 | 0 | 0 | 118 |
| Mar 15–21 | 0 | 0 | 111 |
| Mar 22–28 | 0 | 0 | 120 |
| Mar 29 – Apr 4 | 0 | 0 | 208 |
| Apr 5–11 | 0 | 0 | 304 |
| Apr 12–18 | 0 | 0 | 810 |
| Apr 19–25 | 0 | 0 | 622 |
| Apr 26 – May 2 | 0 | 0 | 561 |
| May 3–9 | 0 | 0 | 539 |
| May 10–16 | 1 | 1 | 620 |
| May 17–23 | 1 | 1 | 560 |
| May 24–30 | 3 | 3 | 640 |
| May 31 – Jun 6 | 1 | 1 | 751 |
| Jun 7–13 | 1 | 1 | 746 |
| Jun 14–20 | 1 | 1 | 593 |
| Jun 21–27 | 2 | 2 | 623 |
| Jun 28 – Jul 4 | 0 | 0 | 725 |
| Jul 5–11 | 1 | 1 | 597 |
| Jul 12–18 | 2 | 2 | 785 |
| Jul 19–25 | 0 | 0 | 848 |
| Jul 26 – Aug 1 | 1 | 1 | 646 |
| Aug 2–8 | 1 | 1 | 665 |
| Aug 9–15 | 0 | 0 | 612 |
| Aug 16–22 | 0 | 0 | 684 |
| Aug 23–29 | 1 | 1 | 775 |
| Aug 30 – Sep 5 | 0 | 0 | 782 |
| Sep 6–12 | 1 | 1 | 1,111 |
| Sep 13–19 | 1 | 1 | 827 |
| Sep 20–26 | 1 | 1 | 663 |
| Sep 27 – Oct 3 | 0 | 0 | 686 |
| Oct 4–10 | 0 | 0 | 576 |
| Oct 11–17 | 0 | 0 | 411 |
| Oct 18–24 | 0 | 0 | 350 |
| Oct 25–31 | 0 | 0 | 245 |
| Nov 1–7 | 2 | 1 | 181 |
| Nov 8–14 | 0 | 0 | 112 |
| Nov 15–21 | 0 | 0 | 101 |
| Nov 22–28 | 0 | 0 | 93 |
| Nov 29 – Dec 5 | 0 | 0 | 55 |
| Dec 6–12 | 0 | 0 | 39 |
| Dec 13–19 | 0 | 0 | 56 |
| Dec 20–26 | 0 | 0 | 39 |
| Dec 27 – Jan 2 | 0 | 0 | 86 |
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
Mid-May to early October, middle week Jun 7–13
Records per week from 640 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 374 dates. Latest record: November 2025.
Show as a table
| Week | Records of Gray's sedge | 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 | 0 | 0 | 13,949 |
| Mar 29 – Apr 4 | 0 | 0 | 19,661 |
| Apr 5–11 | 0 | 0 | 26,860 |
| Apr 12–18 | 0 | 0 | 39,925 |
| Apr 19–25 | 0 | 0 | 41,623 |
| Apr 26 – May 2 | 0 | 0 | 56,391 |
| May 3–9 | 4 | 1 | 52,952 |
| May 10–16 | 21 | 4 | 53,785 |
| May 17–23 | 56 | 8 | 57,698 |
| May 24–30 | 106 | 9 | 54,651 |
| May 31 – Jun 6 | 92 | 10 | 53,099 |
| Jun 7–13 | 64 | 9 | 53,700 |
| Jun 14–20 | 41 | 8 | 56,625 |
| Jun 21–27 | 33 | 6 | 55,361 |
| Jun 28 – Jul 4 | 17 | 7 | 58,477 |
| Jul 5–11 | 23 | 8 | 61,336 |
| Jul 12–18 | 16 | 6 | 64,722 |
| Jul 19–25 | 15 | 7 | 69,753 |
| Jul 26 – Aug 1 | 15 | 8 | 59,416 |
| Aug 2–8 | 16 | 6 | 59,712 |
| Aug 9–15 | 7 | 3 | 55,994 |
| Aug 16–22 | 11 | 4 | 54,328 |
| Aug 23–29 | 9 | 7 | 51,772 |
| Aug 30 – Sep 5 | 8 | 5 | 57,167 |
| Sep 6–12 | 15 | 6 | 59,075 |
| Sep 13–19 | 8 | 6 | 54,543 |
| Sep 20–26 | 7 | 5 | 45,860 |
| Sep 27 – Oct 3 | 22 | 5 | 43,180 |
| Oct 4–10 | 4 | 3 | 37,841 |
| Oct 11–17 | 8 | 5 | 30,824 |
| Oct 18–24 | 7 | 7 | 21,156 |
| Oct 25–31 | 5 | 5 | 19,021 |
| Nov 1–7 | 4 | 3 | 14,172 |
| Nov 8–14 | 3 | 2 | 12,621 |
| Nov 15–21 | 2 | 2 | 7,965 |
| Nov 22–28 | 0 | 0 | 8,136 |
| Nov 29 – Dec 5 | 0 | 0 | 6,083 |
| Dec 6–12 | 1 | 1 | 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
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 14 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
- bladder sedge Carex intumescensOften confused in Ohio: 45 identifications in Ohio named one where the other was meant
- hop sedge Carex lupulina93 identifications worldwide named one where the other was meant
- sallow sedge Carex lurida18 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: no record
- Apr: no record
- May: recorded
- Jun: recorded
- Jul: recorded
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: recorded
- Dec: recorded
Not reported in Ohio in January to April, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Forest | 49%31% |
| Developed | 27%49% |
| Wetland | 12%5% |
| Farmland | 11%11% |
| Open water | 0.8%3% |
From 371 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
640 records from 2 datasets.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 637 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 · 3 recordsiNaturalist. 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.