Verbesina encelioides aka American Dogweed

Verbesina encelioides is a flowering plant in the Asteraceae family that is native to various parts of the United States and Mexico but has also become naturalized in other regions worldwide, such as the Middle East, Spain, Argentina, Australia, and the Pacific islands. This herbaceous plant goes by many common names, including golden crownbeard, gold weed, wild sunflower, cowpen daisy, butter daisy, crown-beard, American dogweed, and South African daisy. Golden crownbeard is often used as an ornamental plant and cut flower and can thrive in a range of climates, including mediterranean, desert, subtropical, temperate, and tropic. It can grow in hardiness zone 5+ and responds strongly to disturbances on suitable sites, outcompeting other local species. Researchers have identified an allelopathic effect on radishes which may explain its dominance in some locations. As a larval host for the bordered patch, golden crownbeard plays an important ecological role. As a houseplant, it is relatively rare and requires regular watering and well-draining soil. It prefers long-lasting, direct light and should be positioned less than 1 foot from a window. If repotted each time it doubles in size, the plant should not require added fertilizers.