Please help me I'd this plant! Thanks!!!

It's a Commelina, likely Commelina erecta. I've read that it can be very invasive in warmer areas like Texas.

Thank you so much!!!! My sister loves it and asked me to find out for her!!! Thanks

Looks like Commelina communis, Asiatic Dayflower. A common weed in the US.

http://plants.usda.gov/core/pr...

http://en.wikipedia.org/wiki/C...

http://uswildflowers.com/detai...

Commelina communis tends to have petals that are less rounded and a tad pointed on the end. They are also held in a very upright position. The petals here are more rounded and held more to the sides which is why I would choose Commelina erecta over C. communis for an ID. The form and position of the stamens, staminoids and pistil look more like C. erecta, too. However, there are quite a few species in the USA that look similar so I'm not swearing to anything.

Thank you so much!!!! My sister loves it and asked me to find out for her!!! Thanks

C. erecta is a native in TX, so can't be invasive, by definition. Looking at USDA plants database, there are many Commelinas known to be present in TX, both native and introduced. The blue doesn't look dark enough to be C. communis, but that's not much to go on for a pic on the computer, where color is sometimes a bit off. C. erecta is what I thought when I saw the pic. I love dayflowers too! The lack of a 3rd petal eliminates most other species from consideration, but does include C. communis.

http://plants.usda.gov/checkli...
(Enter Commelina in the box at top, click the box for TX, click search, to see the species known to be present in TX.)