Gentianaceae

Oregon timwort

Cicendia quadrangularis (Lam.) Griseb.

Family: Gentianaceae
Genus: Cicendia

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Oregon timwort (Cicendia quadrangularis) — FlowerPhoto: Arvel Hernandez, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Oregon timwort

Synonyms

Cicendia poeppigii Griseb.
Exacum chilense Bertero
Exacum filiforme Hook. & Arn.
Exacum inflatum Hook. & Arn.
Exacum quadrangulare (Lam.) Willd.
Gentiana flava Larrañaga
Gentiana quadrangularis Lam.
Microcala quadrangularis (Lam.) Griseb.

Flowers

In flower: March to May (from 381 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Annual
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: Arvel Hernandez, CC BY 4.0, from iNaturalist
FlowerPhoto: joergmlpts, CC BY 4.0, from iNaturalist
FlowerPhoto: Chuck Wilson, CC0, from iNaturalist
FlowerPhoto: Leah Gardner, CC0, from iNaturalist
Photo: Ed Alverson, CC BY 4.0, from iNaturalist
Photo: Alex Heyman, CC0, from Wikimedia Commons
Photo: Cesar Ormazabal, CC BY 4.0, from iNaturalist
Photo: Alex Heyman, CC0, from Wikimedia Commons
Photo: Nina Kerr, CC BY 4.0, from iNaturalist
Photo: Alex Heyman, CC0, from Wikimedia Commons
Photo: wonton_soup, CC BY 4.0, from iNaturalist
Photo: sgene, CC0, from Wikimedia Commons

More in Cicendia

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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.