Flower profile
Leavenworth's eryngo
Eryngium leavenworthii
Leavenworth's eryngo is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Oklahoma it's most often seen in bloom in September–October.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Oklahoma
Quick look
Eryngium leavenworthii, also known as Leavenworth's eryngo, is an annual plant in the family Apiaceae that is native to the central United States. It can reach heights up to 3 feet. It inhabits dry rocky prairies, roadside fields, open woodlands and waste areas. The plant is mostly found in areas with limestone or chalk soils.
- It belongs to the Apiaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a annual life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 6 states. USDA PLANTS
- NatureServe lists it as native to Oklahoma. NatureServe
- In Oklahoma, most iNaturalist sightings of it in flower come in September–October. iNaturalist
- iNaturalist has 507 research-grade sightings of it in Oklahoma, ranking #65 among the 110 flowers on our Oklahoma list. iNaturalist
Leavenworth's eryngo gift ideas
Handmade leavenworth's eryngo gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Leavenworth's eryngo art print
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Leavenworth's eryngo greeting card
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Leavenworth's eryngo mug
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Leavenworth's eryngo earrings
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Leavenworth's eryngo embroidery pattern
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Leavenworth's eryngo sticker
When does it bloom?
In Oklahoma, most flowering sightings come in September–October.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G4 Apparently secure worldwide. NatureServe
- Oklahoma
- No list Oklahoma has no state law listing endangered or threatened plants, so we show NatureServe's Oklahoma ranks instead. NatureServe: SNR, not yet ranked in Oklahoma.
- Rare elsewhere
- Other states where NatureServe ranks it rare or missing: AR (S1). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list.
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records leavenworth's eryngo in 6 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Arkansas, Kansas, Missouri, Oklahoma, Texas, Wisconsin.
Oklahoma counties with USDA records: Bryan, Carter, Choctaw, Comanche, Creek, Garvin, Jackson, Murray, Oklahoma, Payne, Pontotoc, Rogers, Tulsa.
More Oklahoma flowers
Sources
- USDA, NRCS. PLANTS Database, profile ERLE11.
- iNaturalist, Eryngium leavenworthii: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Eryngium leavenworthii (lead quoted under CC BY-SA 4.0).
- Oklahoma: Oklahoma Noxious Weed Law (2 O.S. § 3-220).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Eryngium leavenworthii (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: Sam Kieschnick via iNaturalist · CC BY 4.0 · resized.