SimplePlant

Gentianaceae

American spurred gentian

Halenia deflexa (Sm.) Griseb.

Family
Gentianaceae
Genus
Halenia

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American spurred gentian: Halenia_deflexa_2-eheep
Photo: Superior National Forest, CC BY 2.0, from Wikimedia Commons

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Common names

By language (1)
English
American spurred gentian

Synonyms

  • Halenia brentoniana Griseb.
  • Halenia corniculata subsp. deflexa (Sm.) Hultén
  • Halenia deflexa f. deflexa
  • Halenia deflexa f. heterantha (Fernald) Fernald
  • Halenia deflexa subsp. brentoniana (Griseb.) J.M.Gillett
  • Halenia deflexa var. brentoniana (Griseb.) A.Gray
  • Halenia deflexa var. deflexa
  • Halenia deflexa var. heterantha Fernald
  • Halenia heterantha Griseb.
  • Halenia michauxiana G.Don
  • Swertia americana Spreng.
  • Swertia deflexa Sm.
  • Swertia michauxiana Schult.
  • Tetragonanthus brentonianus (Griseb.) A.Heller
  • Tetragonanthus deflexus (Sm.) Kuntze
  • Tetragonanthus deflexus var. brentonianus (Griseb.) Britton
  • Tetragonanthus deflexus var. heteranthus (Griseb.) Britton
  • Tetragonanthus heterantha (Griseb.) A.Heller

Characteristics

Growth habit
Forb/herb
Lifespan
Annual
In the US and Canada
Canada: native, Lower 48 states: native, St. Pierre and Miquelon: native

Photos

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Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.