Two subspecies of "F. vesca" were identified: "F. sylvestris alba" and "F. sylvestris semperflorens". The introduction of "F. virginiana" from Eastern North America to Europe in the 17th century is an important part of history because it is one of the two species that give rise to the modern strawberry. The new species gradually spread through the continent and did not become completely appreciated until the end of the 18th century. A French excursion journeyed to Chile in 1712, which led to the introduction of a strawberry plant with female flowers that resulted in the common strawberry we have today.