Geranium rotundifolium aka Round Leaf Crane's Bill

Geranium rotundifolium, also known as the roundleaf geranium or round-leaved cranesbill, is an annual herb in the family Geraniaceae. It has a self-supporting growth form and is often found in freshwater habitats. The plant can grow up to 20 cm tall and has simple, broad leaves. Its flowers are visited by sweat bees, Small Carpenter Bees, Myopa, and cabbage butterfly. The stem is tendinous, with nest hairs, and the leaves are matte, round, and ashen green with deep incisions and a small dot at the end. The flowers bloom in spring and summer and are characterized by five tanned and wide petals that do not split. While this plant is rare and desirable as a houseplant, it requires regular watering and direct light within one foot of a window. The soil should be good at retaining moisture, and the plant should be repotted each time it doubles in size. However, it should be noted that the plant may be poisonous. To prevent the spread of herbaceous and floating weeds, uprooting by hand or using weed wrenches can be effective, although it may only be practical for relatively small areas.