Callirhoe and Dischidia are both genus of plants and one is known as poppy mallows, which?
Callirhoe (plant) Callirhoe is a genus of flowering plants in the mallow family, Malvaceae. Its nine species are commonly known as poppy mallows and all are native to the prairies and grasslands of North America. Of the nine, some are annuals while others are perennial plants.
Parthenium hysterophorus Parthenium hysterophorus is a species of flowering plant in the aster family, Asteraceae. It is native to the American tropics. Common names include Santa-Maria, Santa Maria feverfew, whitetop weed, famine weed, and congress weed. In India, it is locally known as carrot grass, congress grass or Gajar Ghans. It is a common invasive species in India, Australia, and parts of Africa.