wild spinach n European plant naturalized in North America; often collected from the wild as a potherb n common weedy European plant introduced into North America; often used as a potherb n leafy greens collected from the wild and used as a substitute for spinach n leaves collected from the wild Synonym(s) good-king-henry allgood fat hen Chenopodium bonus-henricus lamb's-quarters pigweed Chenopodium album lamb's-quarter