Spermacoce alata
Spermacoce alata, the winged false buttonweed, is a species of plant in the family Rubiaceae. It is widespread across the warmer parts of the Western Hemisphere and naturalized in many other parts of the world.Description
Spermacoce alata is a perennial herb, sometimes erect but other times decumbent. Stems are square in cross-section, with wings along the corners running lengthwise along the stem. Leaves are elliptical to oblong, up to 8 cm long. Flowers are white to very pale purple, formed in axillary clumps.Distribution
Spermacoce alata is considered native to southern Mexico, Central America, a few islands in the Caribbean, and parts of South America. It is reportedly naturalized in tropical Africa, China, India, Nepal, Sri Lanka, Bangladesh, the Andaman & Nicobar Islands, Malaysia, Thailand, Borneo, Java, Myanmar, Sumatra, Queensland, the Northern Territory, Fiji and Samoa.