Plants of USA and Canada

Scientific or common name:

Gentiana quadrangularis Lam.

GENTIANACEAE Family selection - Gentian family (Angiosperms - Flowering plants)

Taxon Page:

Name: Gentiana quadrangularis Lam. Taxon selection
Nomencl. ref.: Encycl. [J. Lamarck & al.] 2(2): 645. 1788 [14 Apr 1788]
Rank: species
See: ► Cicendia quadrangularis (Lam.) Griseb.

Common names

US name U.S. name: Oregon timwort

Grown habit: Forb/herb
Duration: Annual

= Cicendia quadrangularis (Lam.) Griseb.
= Exacum chilense Bertero
= Exacum inflatum Hook. & Arn.
= Microcala quadrangularis (Lam.) Griseb.

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Distribution in USA and Canada (*)

Distributional map for Gentiana quadrangularis Lam.
Map for Gentiana quadrangularis Lam.
(*) USDA, NRCS. 2009. The PLANTS Database (, 28 August 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA


Kingdom: Plantae
Subkingdom: Tracheobionta
Superdivision: Spermatophyta
Division: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Gentianales
Family: Gentianaceae

Genus: Gentiana

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Genera (Gentianaceae)
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Common names (Gentiana)
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More species:
1) Gentiana setigera A. Gray
2) Gentiana simplex A. Gray
3) Gentiana tenella Rottb.
4) Gentiana tortuosa M.E. Jones
5) Gentiana verna L. [excluded]
6) Gentiana villosa L.
7) Gentiana x billingtonii Farw. (pro sp.)
8) Gentiana x curtisii J. Pringle
9) Gentiana x grandilacustris J. Pringle
10) Gentiana x pallidocyanea J. Pringle

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