Plumbago indica syn Plumbago rosea
This might not be considered a weed because they are not prominently growing anywhere, but in our property it is a weed. My definition of weed is undomesticated, growing profusely in mostly marginal areas, normally invasive, and not taken care of. At least in our property, this beautiful flowering plant i consider as weed. It might just have wandered around and escaped domestic care, thrive well somewhere and now growing marginally outside our considered 'garden'. At least it provided color contrasts in an otherwise boring corner lot.
This is another NOID growing among the 'carabao' grasses. The showy part of the flower is about just 1cm in length. My 35mm macro lens cannot get a good magnification because it is creeping on the ground. The slight wind around its micro climate did not help my focusing! But being purplish, i surely love it!