Bloomipedia
Yellow salsify (Tragopogon dubius)
Photo: Rose Zappa via iNaturalist · CC BY 4.0 · resized

Flower profile

Yellow salsify

Tragopogon dubius

Introduced in the lower 48

Yellow salsify is a wildflower that USDA PLANTS lists as introduced in the lower 48 states. It's on our flower lists for 10 states, and across the U.S. it's most often seen in bloom in May–July.

45states
10of our state lists
20,414U.S. sightings*

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

On our lists for: Colorado, Idaho, Kansas, Montana, Nebraska, New Mexico, North Dakota, South Dakota, Utah, Wyoming

Quick look

Tragopogon dubius, commonly known as yellow salsify, is a species of salsify with yellow flower heads. It is native to Eurasia and has been introduced to North America.

  • It belongs to the Asteraceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a annual, biennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as introduced in the lower 48 states and records it in 45 states. USDA PLANTS
  • In Colorado, most iNaturalist sightings of it in flower come in May–July. iNaturalist
  • In Montana, most iNaturalist sightings of it in flower come in May–August. iNaturalist
  • 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 3 ft. USDA PLANTS
  • iNaturalist has 3,057 research-grade sightings of it in Colorado, ranking #46 among the 110 flowers on our Colorado list. iNaturalist
  • iNaturalist has 1,311 research-grade sightings of it in Montana, ranking #17 among the 109 flowers on our Montana list. iNaturalist
  • iNaturalist has 1,114 research-grade sightings of it in Idaho, ranking #16 among the 109 flowers on our Idaho list. iNaturalist

Yellow salsify gift ideas

Handmade yellow salsify gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (1,938 records)
Bloom time in each of our 10 states
StateTypePeak bloomSightings*
ColoradoIntroducedMay–July3,057
MontanaIntroducedMay–August1,311
IdahoIntroducedMay–September1,114
UtahIntroducedApril–October989
New MexicoIntroducedMay–July665
WyomingIntroducedJune–September632
South DakotaIntroducedMay–July506
KansasIntroducedMay–July454
NebraskaIntroducedMay–July433
North DakotaIntroducedJune–October281

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
Colorado
No list Colorado has no state law listing endangered or threatened plants, so we show NatureServe's Colorado ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Colorado.
Montana
No list Montana has no state law listing endangered or threatened plants, so we show NatureServe's Montana ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Montana.
Idaho
No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Idaho.
Utah
No list Utah has no state law listing endangered or threatened plants, so we show NatureServe's Utah ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Utah.
New Mexico
Not listed Not on New Mexico state endangered plant species (19.21.2.9 NMAC). NatureServe: SNA, not applicable (usually because it isn't native there) in New Mexico. 19.21.2.9 NMAC
Wyoming
No list Wyoming has no state law listing endangered or threatened plants, so we show NatureServe's Wyoming ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Wyoming.
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: SNA, not applicable (usually because it isn't native there) in South Dakota.
Kansas
No list Kansas's endangered and threatened list (K.A.R. 115-15-1) covers animals only, so we show NatureServe's Kansas ranks for plants. NatureServe: SNA, not applicable (usually because it isn't native there) in Kansas.
Nebraska
Not listed Not on Nebraska threatened and endangered species (163 Neb. Admin. Code ch. 4, § 004). NatureServe: SNA, not applicable (usually because it isn't native there) in Nebraska. 163 NAC 4-004
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: SNA, not applicable (usually because it isn't native there) in North Dakota.
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 yellow salsify in 45 states plus Washington, D.C.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming; District of Columbia.

Colorado counties with USDA records: Archuleta, Baca, Bent, Boulder, Cheyenne, Custer, Douglas, Eagle, El Paso, Garfield, Gilpin, Grand, Gunnison, Huerfano, Jackson, Jefferson, La Plata, Larimer, Las Animas, Logan, Mesa, Moffat, Montezuma, Montrose, Otero, Park, Phillips, Pitkin, Pueblo, Rio Blanco, Routt, San Miguel, Summit, Teller, Washington, Weld, Yuma.

Montana counties with USDA records: Beaverhead, Big Horn, Blaine, Broadwater, Carbon, Carter, Cascade, Chouteau, Custer, Daniels, Dawson, Deer Lodge, Fallon, Fergus, Flathead, Gallatin, Garfield, Glacier, Golden Valley, Granite, Hill, Jefferson, Judith Basin, Lake, Lewis and Clark, Liberty, Lincoln, Madison, McCone, Meagher, Mineral, Missoula, Musselshell, Park, Petroleum, Phillips, Pondera, Powder River, Powell, Prairie, Ravalli, Richland, Roosevelt, Rosebud, Sanders, Sheridan, Silver Bow, Stillwater, Sweet Grass, Teton, Toole, Treasure, Valley, Wheatland, Wibaux, Yellowstone.

Idaho counties with USDA records: Ada, Adams, Bannock, Bear Lake, Benewah, Blaine, Boise, Bonner, Bonneville, Butte, Canyon, Caribou, Cassia, Clark, Custer, Elmore, Franklin, Fremont, Gem, Idaho, Jefferson, Latah, Lewis, Lincoln, Nez Perce, Oneida, Owyhee, Payette, Twin Falls, Valley, Washington.

More Colorado flowers

Sources