Index / Search / Helenium flexuosum

§1 Plant

Helenium flexuosum Raf.

vernacular purplehead sneezeweed — species · Asteraceae


USDA
HEFL
GBIF
5401838
Rank
species
purplehead sneezeweed (Helenium flexuosum)
Platephotograph · Lauren LeCroy MayCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb
Duration
Perennial
Group
Dicot
Family
Asteraceae Bercht. & J. Presl
Genus
Helenium
§2a

Native status, by region

  • CAN Canada Introduced
  • L48 Lower 48 States Native
§2b

County-level range

· 685 counties across 32 states/territories
Legend Native · 685 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

Climate & soil

Cold tolerance
-28 °F minimum
Frost-free days
140 min.
Precipitation
20–60 in/yr
pH range
4.5–7.5
Root depth
6 in min.
Fertility need
Medium
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Multiple Stem
Growth rate
Moderate
Lifespan
Short
Mature height
3.2 ft
Foliage texture
Medium
Foliage colour
Green
Porosity (summer)
Moderate
Porosity (winter)
Porous
Flower colour
Yellow
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Summer
Seed abundance
High
Seed begins
Summer
Seed ends
Fall
Spread rate
Moderate
Stratify
No
Seeds / lb
2,000,000
Propagation
seed, bare root
§3e

Use & availability

Commercial availability
Routinely Available
Nursery stock
No
Browse palatability
Medium
Graze palatability
Medium
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 685 counties across 32 states/territories.

Alabama view state ↗ 10 N
Arkansas view state ↗ 58 N
Delaware view state ↗ 2 N
District of Columbia view state ↗ 1 N
Florida view state ↗ 23 N
Georgia view state ↗ 16 N
Illinois view state ↗ 48 N
Indiana view state ↗ 30 N
Iowa view state ↗ 1 N
Kansas view state ↗ 5 N
Kentucky view state ↗ 54 N
Louisiana view state ↗ 40 N
Maine view state ↗ 2 N
Massachusetts view state ↗ 13 N
Michigan view state ↗ 9 N
Minnesota view state ↗ 1 N
Mississippi view state ↗ 4 N
Missouri view state ↗ 73 N
New Hampshire view state ↗ 9 N
New Jersey view state ↗ 8 N
New York view state ↗ 17 N
North Carolina view state ↗ 40 N
Ohio view state ↗ 27 N
Oklahoma view state ↗ 2 N
Pennsylvania view state ↗ 31 N
Rhode Island view state ↗ 2 N
South Carolina view state ↗ 18 N
Tennessee view state ↗ 51 N
Vermont view state ↗ 7 N
Virginia view state ↗ 56 N
West Virginia view state ↗ 18 N
Wisconsin view state ↗ 9 N

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/HEFL ↗

GBIF Backbone

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

gbif.org/species/5401838 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T09:28:40Z