Bloomipedia
Downy painted-cup (Castilleja sessiliflora)
Photo: Anders Hastings via iNaturalist · CC BY 4.0 · resized

Flower profile

Downy painted-cup

Castilleja sessiliflora

Native in the lower 48

Downy painted-cup 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 March–June.

16states
2of our state lists
2,006U.S. sightings*

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

On our lists for: North Dakota, South Dakota

Quick look

Castilleja sessiliflora is a species of flowering plant in the broomrape family known by the common names downy paintbrush and downy paintedcup. It is native to the Great Plains of North America from southern Canada, through the central United States, to northern Mexico. It occurs as far west as the eastern slopes of the Rocky Mountains.

  • It belongs to the Orobanchaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) / a subshrub with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 16 states. USDA PLANTS
  • NatureServe lists it as native to South Dakota and North Dakota. NatureServe
  • USDA PLANTS lists its flower color as yellow. USDA PLANTS
  • USDA PLANTS gives its bloom period as mid spring. USDA PLANTS
  • USDA PLANTS lists a mature height of about 1.3 ft. USDA PLANTS
  • iNaturalist has 148 research-grade sightings of it in South Dakota, ranking #99 among the 108 flowers on our South Dakota list. iNaturalist
  • iNaturalist has 106 research-grade sightings of it in North Dakota, ranking #66 among the 109 flowers on our North Dakota list. iNaturalist

Downy painted-cup gift ideas

Handmade downy painted-cup gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (179 records)
Bloom time in each of our 2 states
StateTypePeak bloomSightings*
South DakotaNativefew records148
North DakotaNativefew records106

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
G5 Secure worldwide. NatureServe
South Dakota
No list South Dakota's endangered and threatened list (ARSD 41:10:02) covers animals only, so we show NatureServe's South Dakota ranks for plants. NatureServe: SNR, not yet ranked in South Dakota.
North Dakota
No list North Dakota has no state law listing endangered or threatened plants, so we show NatureServe's North Dakota ranks instead. NatureServe: SNR, not yet ranked in North Dakota.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: IL (S2), MO (S2). (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?

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 downy painted-cup in 16 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, Colorado, Illinois, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Wisconsin, Wyoming.

South Dakota counties with USDA records: Bennett, Brookings, Butte, Codington, Corson, Custer, Day, Deuel, Fall River, Harding, Hutchinson, Jackson, Jerauld, Lawrence, Lincoln, Marshall, McCook, Meade, Minnehaha, Pennington, Roberts, Todd, Turner, Union, Yankton, Ziebach.

North Dakota counties with USDA records: Adams, Barnes, Benson, Billings, Bottineau, Bowman, Burke, Dickey, Divide, Dunn, Eddy, Emmons, Golden Valley, Grant, Griggs, Hettinger, Kidder, LaMoure, McIntosh, McKenzie, McLean, Mercer, Morton, Mountrail, Oliver, Pembina, Pierce, Ransom, Renville, Rolette, Sargent, Sheridan, Sioux, Slope, Stark, Steele, Stutsman, Ward, Williams.

More South Dakota flowers

Sources