Commelina erecta L.
Slender dayflower is native to the Americas, Africa, and western Asia. The genus, Commelina, is an in-joke created by Linnaeus himself, commemorating three botanist brothers, the Commelyns. Two of the brothers, akin to the dayflowers’ two prominent petals, published papers and went on to successful careers, while the third amounted to nothing, like the inconsequential white petal on the dayflower.
Identification: These plants tend to lie prostrate, growing along the ground up to 3' (91 cm) unless they have other plants to crawl over. The pair of opposing blue petals, looking a bit like Mickey Mouse ears, are the most obvious identifying feature. There is a third, smaller petal below. Flowers are about ¾" (1.9 cm) across.
Commelina erecta at Illinois Wildflowers
Commelina erecta on Missouriplants.com
Commelina erecta at the Lady Bird Johnson Wildflower Center
Commelina erecta at Southeastern Arizona Wildflowers and the Plants of the Sonoran Desert
Commelina erecta on Plants for a Future, a resource and information centre for edible and otherwise useful plants
Commelina erecta on Native Plants of Texas
Commelina erecta on Kansas Wildflowers and Grasses
Commelina erecta at the Vanderbilt University Bioimages web site
Commelina erecta on eFloras
Commelina erecta description by Thomas H. Kent, last updated 4 Sep 2013.