Synonym(s): Chrysanthemum leucanthemum
Family: Asteraceae (Aster Family)
Duration and Habit: Perennial Herb
Ox-eye daisy (Leucanthemum vulgare) is a prostrate herb with stems that sprout laterally from a creeping rootstock. When in flower, the plant?s height ranges from one to three feet. The white-petaled flower-like inflorescences have yellow centers. Leaves are dark green on both sides, one to two inches long, smooth, and pinnately lobed or toothed. The number of flower stalks ranges from one to forty per plant.
Ecological Threat: Ox-eye daisy displaces native plant species, growing so densely it excludes other vegetation. While not considered poisonous to cows, it does impart a disagreeable taste to their milk. It is difficult to control or eradicate because of its large seedbank, long viability of seed, and ability to resprout if not completely removed.
Biology & Spread: Ox-eye daisy spreads through abundant seed production and vegetatively by rooting underground stems (rhizomes) (Griswold 1985). Seeds have no special adaptations to aid dispersal, but are small and fall to the ground up to two meters from the parent plant. When the flowerheads are dry, the seeds drop or are shattered easily by touch or movement. Water, human and animal foot traffic, and cultivating and earth-moving machinery can carry seeds into new areas.
History: Ox-eye daisy is native to Europe (Polunin 1969). It was probably introduced to North America as an ornamental early in the twentieth century. It is currently used as an ornamental, and is it often sold commercially in seed packets labeled as wildflower seed.
U.S. Nativity: Introduced to U.S.
Native Origin: Europe
U.S. Present: AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK,OR, PA, RI, SC, SD, TN, UT, VA, VT, WA, WI, WV, WY
List All Observations of Leucanthemum vulgare reported by Citizen Scientists
University of California (http://ucce.ucdavis.edu/datastore/detailreport.cfm?usernumber=59&surveynumber=182)
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