Species profile
Northwestern Gartersnake
Thamnophis ordinoides
Identify Northwestern Gartersnake (Thamnophis ordinoides) from a photo: try it free in your browser, or get unlimited IDs, no sign-up, with the CatchRules app.
At a glance
Northwestern Gartersnake (Thamnophis ordinoides) is an IUCN Least Concern reptile with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.
Confirmed by 13,619 research-grade iNaturalist observations, with Oregon, Washington, and British Columbia the top jurisdictions by observation count.
Notable details
- One of the smallest gartersnakes, rarely exceeding 26 inches in total length.
- Found exclusively in the Pacific Northwest, from British Columbia south to northern California.
- Slugs and earthworms make up the bulk of its diet.
- Gives birth to live young, usually 3–12 per litter.
- Hides under logs, rocks, or debris in moist coastal forests and meadows.
Where Northwestern Gartersnake are seen
Background
The northwestern garter snake (Thamnophis ordinoides) is a species of colubrid snake endemic to North America.
Background excerpt adapted from Wikipedia's Northwestern Gartersnake article (CC BY-SA). Visit Wikipedia for the full entry.
Other reptiles on CatchRules
Frequently asked questions
What is Northwestern Gartersnake?
Northwestern Gartersnake (Thamnophis ordinoides) is an IUCN Least Concern reptile with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.
What is the scientific name for Northwestern Gartersnake?
Northwestern Gartersnake is Thamnophis ordinoides.
Are there fishing rules for Northwestern Gartersnake?
Northwestern Gartersnake does not currently have published fishing rules in CatchRules' curated jurisdictions. Identification, range, and habitat are still tracked above.
How can I identify Northwestern Gartersnake?
Take a photo with the free CatchRules app for iPhone or Android — on-device identification recognizes Northwestern Gartersnake along with ~1,500 other species. No sign-up, unlimited use.
Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.