Euphorbia peplus aka Petty Spurge

Euphorbia peplus, also known as petty spurge, radium weed, cancer weed, or milkweed, is a self-seeding annual that is native to most of Europe, northern Africa, and western Asia. It typically grows in cultivated arable land, gardens, and other disturbed areas, but it has become invasive in many countries outside of its native range, including Australia, New Zealand, and North America. Despite its reputation as a weed, some homeowners appreciate petty spurge for its ability to grow in moist, shady, or tight spaces where other plants struggle. This plant features branching stems, green ovate leaves, and small yellow flowers that bloom throughout the year. However, like all spurges, the broken stems exude a milky sap that can irritate skin and eyes. Cancer Weed, another member of the Euphorbia genus, is a rare houseplant that is easy to grow and prefers direct sunlight and well-draining soil. It is native to Europe, the Western Himalayas, and the Mediterranean to Somalia. Watering should be limited, and fertilizers are unnecessary if the plant is repotted as it grows.