Natives by ZIP

Native plants recorded in your state and county

Wildflower (forb) · Fumariaceae

Yellow fumewort

Corydalis flavula

Yellow fumewort is recorded as native to 24 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 555 counties of those states by USDA PLANTS.

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

Key facts · USDA PLANTS

Yellow fumewort at a glance

Native in
555 counties, across 24 states and territories
Estimated cold hardiness
Zone 5b PLANTS minimum temperature −18°F
Mature height
1.5 ft PLANTS mature height
Light and water
Sun to part shade Medium water use

Estimated cold hardiness: zone 5b. PLANTS gives a minimum temperature of −18°F; zone 5b winters bottom out at −15°F, the coldest half-zone that stays within that limit.

Yellow fumewort is recorded as native to 24 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 555 counties of those states by USDA PLANTS.

Counties where it is native

The 15 counties with the most ZIP codes among the 555 where it is listed.

Native counties by state

Growing traits

Values from the PLANTS characteristics record. “Not recorded” means PLANTS has no value; nothing here is estimated except the zone.

Growth

Growth habit
Forb/herb
Duration
Annual
Mature height
1.5 ft
Growth rate
Rapid
Growth form
Single Crown
Shape
Semi-Erect
Lifespan
Not recorded
Active growth period
Spring

Light and water

Shade tolerance
Intermediate (sun to part shade)
Moisture use
Medium water use
Drought tolerance
Low
Tolerance of waterlogged soil
Low
Precipitation range
32 to 55 in per year

Soil

Soil textures
Coarse and medium
pH range
4.8 to 6.8
Lime (CaCO₃) tolerance
Medium
Salinity tolerance
None
Fertility requirement
Medium
Minimum root depth
6 in

Climate

Minimum temperature
−18°F
Estimated cold hardiness
Zone 5b and warmer
Minimum frost-free days
160
Fire tolerance
Low

Flowers, leaves and fruit

Flower color
Yellow
Showy flowers
Yes
Bloom period
Mid Spring
Foliage color
White-Gray
Showy in fall
No
Keeps leaves
No
Fruit color
Black

Other

Toxicity
Slight
Nitrogen fixation
None
Nursery availability
No Known Source
Family
Fumariaceae
PLANTS symbol
COFL3

Is it native where you live?

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

Source & data date

Source
USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation
USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date
Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Scope
Corydalis flavula (PLANTS symbol COFL3).
Method
A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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