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Leucanthemum vulgare
Leucanthemum vulgare. Synonyms: Chrysanthemum leucanthemum, Tanacetum vulgare. (Ox-eye Daisy)
Asteraceae (Sunflower Family)

Foothills, montane, subalpine. Roadsides, openings. Summer.
Bear Creek Trail, July 1, 2004.

These non-native members of the Sunflower Family were often planted in mining communities and have escaped into the wild where they intrude on many native species. The early years of the 21st century have seen an explosion in the Leucanthemum vulgare population along highway 145 north of Dolores and even more so along Highway 550 north of Durango.

Leaves of Leucanthemum vulgare are narrow, several inches long, and shallowly lobed.  Flowers are long-lived, large, and attractive, so much so that they are often included in so-called "wildflower" seed packs -- thus spreading this invader even more.  Look for them in disturbed areas -- and pull them out.

Linnaeus named the Chrysanthemum genus and he named this species in 1753.  The species was moved to the Leucanthemum genus (also named by Linnaeus) in 1779 by Jean Baptiste de Lamarck.  "Leucanthemum" is Greek for "white flower" and "vulgare" is Latin for "common".

Leucanthemum vulgare
Leucanthemum vulgare.  Synonyms: Chrysanthemum leucanthemum, Tanacetum vulgare. (Ox-eye Daisy)
Asteraceae (Sunflower Family)

Foothills, montane, subalpine. Roadsides, openings. Summer.
Bear Creek Trail, July 1, 2004.

Leucanthemum vulgare

Leucanthemum vulgare

Leucanthemum vulgare. Synonyms: Chrysanthemum leucanthemum, Tanacetum vulgare. (Ox-eye Daisy)
Asteraceae (Sunflower Family)

Foothills, montane, subalpine. Roadsides, openings. Summer.
Bear Creek Trail, July 1, 2004 and Geyser Trail, June 29, 2012.

Leucanthemum vulgare
Leucanthemum vulgare. Synonyms: Chrysanthemum leucanthemum, Tanacetum vulgare. (Ox-eye Daisy)
Asteraceae (Sunflower Family)

Foothills, montane, subalpine. Roadsides, openings. Summer.
Bear Creek Trail, June 29, 2010.

Basal leaves are numerous in a tight mass; stem leaves are sparse.

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Leucanthemum vulgare