Veronica peregrina aka Necklaceweed

Veronica peregrina, also known as neckweed, American speedwell, purslane speedwell and hairy purslane speedwell, is an annual herb with taproots that is native to the Americas but has become an introduced species and common weed on other continents. It can be found growing on roadsides, fields, and other disturbed habitats. This plant can be weedy even in its native range. There are two subspecies: ssp. xalapensis, which is coated in glandular hairs, and ssp. peregrina, which is a hairless variety. The plant has erect stems that can grow up to 30 centimeters tall and produce lance-shaped bracts with a loose terminal raceme of white flowers that are typically 2-3 millimeters wide. The leaves vary in shape from linear to lance-shaped to spoon-shaped with smooth or serrated edges, and the lower leaves are borne on petioles. Neckweed is also a rare houseplant that requires regular watering to thrive. It does best in long-lasting, direct light and should be placed less than 1 foot from a window. Well-draining soil is preferred, and the plant should be repotted each time it doubles in size, eliminating the need for added fertilizers.