I grow this as an ornamental but it is quite prolific and self seeds all over - these young 'weeds' are good in salads of noodle soups.
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P. pellucida, native tropical America: succulent leaves and shoots can be eaten in salads, used as a potherb, or cooked as greens. The leaves are also brewed into a tea. P. maculosa: The coriander-tasting leaves are used for seasoning usually with legumes and meats. from Eat the Weeds
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Astaysia Gangetica. Native to tropical Malaysia, India, and Africa.
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