Bloomipedia
Prairie false indigo (Baptisia lactea)
Photo: Peter Chen 2.0 via iNaturalist · CC BY 4.0 · resized

Flower profile

Prairie false indigo

Baptisia lactea

Native in the lower 48

Prairie false indigo is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in May–July.

6states
2of our state lists
7,832U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Illinois, Iowa

Quick look

Baptisia alba, commonly called white wild indigo or white false indigo, is a herbaceous perennial plant in the bean family Fabaceae. It is native in central and eastern North America, and is typically found in open woodland areas and prairies with tall grasslands.

  • It belongs to the Fabaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a perennial 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 Illinois and Iowa. NatureServe
  • In Illinois, most iNaturalist sightings of it in flower come in May–July. iNaturalist
  • In Iowa, most iNaturalist sightings of it in flower come in May–August. iNaturalist
  • iNaturalist has 2,588 research-grade sightings of it in Illinois, ranking #72 among the 109 flowers on our Illinois list. iNaturalist
  • iNaturalist has 394 research-grade sightings of it in Iowa, ranking #68 among the 109 flowers on our Iowa list. iNaturalist

Prairie false indigo gift ideas

Handmade prairie false indigo gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (564 records)
Bloom time in each of our 2 states
StateTypePeak bloomSightings*
IllinoisNativeMay–July2,588
IowaNativeMay–August394

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
T4 See NatureServe for what T4 means. NatureServe
Illinois
Not listed Not on Illinois List of Endangered and Threatened Flora (17 Ill. Adm. Code 1050), per the Endangered Species Protection Board's 2025 checklist. NatureServe: SNR, not yet ranked in Illinois. IL E&T checklist 2025
Iowa
Not listed Not on Iowa endangered, threatened and special concern plants (Iowa Admin. Code r. 571-77.3). NatureServe: SNR, not yet ranked in Iowa. IAC 571-77.3
Rare elsewhere
No other U.S. state ranks it S1, S2, SH or SX.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

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.

For petsNot well documented

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 prairie false indigo in 6 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Florida, Georgia, North Carolina, South Carolina, Virginia.

More Illinois flowers

Sources