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Pine woods snake (Rhadinaea flavilata)

The pine woods snake is a snake in the family Colubridae with a mild venom for its prey, not dangerous to people. GBIF holds 338 licensed U.S. records of it; it reaches our listing threshold in 5 states, most of all North Carolina (185), Florida (103) and South Carolina (26). Its observation records peak in March.

Pine woods snake (Rhadinaea flavilata)
Photo: Donna A. Dewhurst, U.S. Fish and Wildlife Service, Public domain, via Wikimedia Commons
5states on record
338licensed U.S. records
Marpeak month, observations
Novenomous to people

The pine woods snake (Rhadinaea flavilata), also commonly known as the yellow-lipped snake and the brown-headed snake, is a secretive species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to scattered locations across the southeastern United States. Rhadinaea flavilata is rear-fanged and mildly venomous, but not dangerous to humans.

From Wikipedia: Pine woods snake, text under CC BY-SA 4.0.

Bitten? Call 911 for a venomous snakebite or any bite with trouble breathing. For advice on any bite or sting, call Poison Help at 1-800-222-1222 (free, 24/7, U.S.-wide). Do not cut the wound, suck out venom or use a tourniquet. General information, not medical advice. Do not handle or try to identify a snake or spider by this page; if unsure, treat it as venomous.

Is the pine woods snake poisonous or venomous?

Mildly venomous but not dangerous: the pine woods snake has enlarged rear teeth and a mild venom for its prey, and a bite causes at most local swelling, which is why many sources simply call it harmless. It is not a pit viper or coral snake, the only U.S. land snakes with medically dangerous venom. Clean any bite like a small wound.

Which states have the pine woods snake?

The pine woods snake's U.S. record is concentrated: North Carolina alone holds 55% of licensed records. It is listed in 5 states in all; the next are Florida (103), South Carolina (26) and Mississippi (15).

#StateRecordsShare of state snakesRank in state
1North Carolina1850.9%27th of 39
2Florida1030.5%30th of 49
3South Carolina260.7%31st of 40
4Mississippi150.8%28th of 38
5Alabama60.1%42nd of 44
Source: GBIF, read 2026-09-29. A state is listed once GBIF holds at least 10 records of the species there under any license; Records counts only CC0 and CC BY records, so a listed state can show fewer.

When is the pine woods snake seen?

Across the U.S., observation records of the pine woods snake run mostly February through October, peaking in March with 13% of them. Winter (December to February) holds 17% of them.

January: 4 observation records (7%)Jan7%February: 6 observation records (10%)Feb10%March: 8 observation records (13%)Mar13%April: 6 observation records (10%)Apr10%May: 8 observation records (13%)May13%June: 5 observation records (8%)Jun8%July: 4 observation records (7%)Jul7%August: 4 observation records (7%)Aug7%September: 8 observation records (13%)Sep13%October: 5 observation records (8%)Oct8%November: 2 observation records (3%)NovDecember: 0 observation records (0%)Dec

Where the pine woods snake is recorded in each state

North Carolina

North Carolina holds 185 licensed records, the 27th most recorded of 39 snakes listed there. Most of its licensed records in North Carolina come from Sampson County, New Hanover County and Carteret County. Next come Bladen County (16) and Brunswick County (15).

Florida

Florida holds 103 licensed records, the 30th most recorded of 49 snakes listed there. Its observation records in Florida run through most of the year, peaking in March; most licensed records come from Alachua County, Marion County and Duval County. Next come Orange County (10) and Hillsborough County (6).

Top counties in the U.S.

#CountyStateRecordsShare of U.S.
1Sampson CountyNorth Carolina4513.3%
2New Hanover CountyNorth Carolina3610.7%
3Carteret CountyNorth Carolina267.7%
4Alachua CountyFlorida205.9%
5Bladen CountyNorth Carolina164.7%
6Brunswick CountyNorth Carolina154.4%
7Pender CountyNorth Carolina154.4%
8Marion CountyFlorida133.8%
9Duval CountyFlorida103.0%
10Orange CountyFlorida103.0%
11Onslow CountyNorth Carolina92.7%
12Dare CountyNorth Carolina72.1%
13Hillsborough CountyFlorida61.8%
14Craven CountyNorth Carolina51.5%
15Okeechobee CountyFlorida41.2%
Source: GBIF licensed records by county (GADM level 2), read 2026-09-29.

How recent are the pine woods snake records?

The pine woods snake record leans on older material: only 28% of dated U.S. records come from 2017–2026, and the median record is from 1979. The oldest dated record is from 1898; the busiest year was 1971, with 16 records.

DecadeRecordsShare
1890s51.5%
1910s51.5%
1920s10.3%
1930s195.9%
1940s72.2%
1950s175.3%
1960s3510.8%
1970s7322.6%
1980s309.3%
1990s154.6%
2000s113.4%
2010s3912.1%
2020s6620.4%
Source: GBIF licensed U.S. records with a year, read 2026-09-29.

Species recorded in the same counties

Of the 30 counties where the pine woods snake is most recorded, 18 are also top counties for the eastern rat snake, more than for any other snake. None of its closest neighbors is venomous.

SpeciesShared counties
Eastern rat snake18
Southern watersnake16
Scarlet kingsnake15
Scarlet snake15
Corn snake14
Eastern kingsnake14
Eastern racer14
Coachwhip13
Source: GBIF licensed records, top counties per species and state, read 2026-09-29.

GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.

About these numbers

A species is listed for a state once GBIF holds at least 10 records of it located inside the state by coordinates, under any license. Every count, share, month and county shown is computed only from records published under CC0 or CC BY, so a listed species can show few or no counted records. Monthly patterns show when people record snakes, which also reflects when people are outdoors. Venomous status follows taxonomy: pit vipers and coral snakes; widow and recluse spiders; the Arizona bark scorpion. Records filed under older names count for the species they belong to today. Full methodology.