Index / Search / Triosteum aurantiacum var. illinoense

§1 Plant

Triosteum aurantiacum E.P. Bicknell var. illinoense (Wiegand) Palmer & Steyerm.

vernacular Illinois horse-gentian — variety · Caprifoliaceae


USDA
TRAUI
GBIF
3856517
Rank
variety
Illinois horse-gentian (Triosteum aurantiacum var. illinoense)
Platephotograph · Ilona LoserCC BY-SA source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb
Duration
Perennial
Group
Dicot
Family
Caprifoliaceae Juss.
Genus
Triosteum
§2a

Native status, by region

  • L48 Lower 48 States Native
§2b

County-level range

· 180 counties across 12 states/territories
Legend Native · 180 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation

No cultivation specs.

USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.


§4Counties, by state

Recorded in 180 counties across 12 states/territories.

Arkansas view state ↗ 2 N
Illinois view state ↗ 52 N
Indiana view state ↗ 25 N
Iowa view state ↗ 3 N
Kansas view state ↗ 8 N
Kentucky view state ↗ 4 N
Missouri view state ↗ 55 N
Nebraska view state ↗ 2 N
Ohio view state ↗ 1 N
Oklahoma view state ↗ 3 N
Pennsylvania view state ↗ 11 N
Wisconsin view state ↗ 14 N

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/TRAUI ↗

GBIF Backbone

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

gbif.org/species/3856517 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T14:42:51Z