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§1 Plant

Tragopogon dubius Scop.

vernacular yellow salsify — species · Asteraceae

USDA
TRDU
GBIF
6443709
Rank
species
yellow salsify (Tragopogon dubius)
Platephotograph · Suzette Rogers source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb
Duration
Annual, Biennial
Group
Dicot
Family
Asteraceae Bercht. & J. Presl
Genus
Tragopogon
§2a

Native status, by region

  • AK Alaska Introduced
  • CAN Canada Introduced
  • L48 Lower 48 States Introduced
§2b

County-level range

· 644 counties across 25 states/territories
Legend Native · 0 Introduced · 644 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
High
Shade
High
Moisture use
Low
Fire
None
Salinity
None
Anaerobic
None
CaCO₃
Medium
Hedging
None
§3b

Climate & soil

Cold tolerance
-28 °F minimum
Frost-free days
160 min.
Precipitation
6–40 in/yr
pH range
6.5–7.5
Root depth
6 in min.
Fertility need
Low
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Single Stem
Growth rate
Rapid
Mature height
3 ft
Foliage texture
Fine
Foliage colour
Green
Porosity (summer)
Porous
Porosity (winter)
Porous
Flower colour
Yellow
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Mid Spring
Seed abundance
High
Seed begins
Summer
Seed ends
Fall
Spread rate
Rapid
Stratify
No
Seeds / lb
28,000
Propagation
seed
§3e

Use & availability

Commercial availability
No Known Source
Nursery stock
No
Browse palatability
Low
Graze palatability
Low
Palatable, human
No
Protein potential
Low
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 644 counties across 25 states/territories.

Alaska view state ↗ 1 I ▾
Arizona view state ↗ 8 I ▾
Arkansas view state ↗ 15 I ▾
District of Columbia view state ↗ 1 I ▾
Illinois view state ↗ 70 I ▾
Indiana view state ↗ 37 I ▾
Iowa view state ↗ 24 I ▾
Kansas view state ↗ 105 I ▾
Kentucky view state ↗ 26 I ▾
Louisiana view state ↗ 1 I ▾
Maine view state ↗ 1 I ▾
Massachusetts view state ↗ 10 I ▾
Michigan view state ↗ 67 I ▾
Minnesota view state ↗ 67 I ▾
Montana view state ↗ 56 I ▾
New Hampshire view state ↗ 5 I ▾
New Jersey view state ↗ 9 I ▾
New York view state ↗ 16 I ▾
North Carolina view state ↗ 4 I ▾
Pennsylvania view state ↗ 33 I ▾
Rhode Island view state ↗ 2 I ▾
Tennessee view state ↗ 20 I ▾
Vermont view state ↗ 4 I ▾
Virginia view state ↗ 53 I ▾
West Virginia view state ↗ 9 I ▾

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/TRDU ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/6443709 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T07:25:30Z