noun

milkweed

milkweed

Monarch butterfly caterpillars only eat milkweed.

Monarch butterfly caterpillars only eat milkweed.

milkweed a type of wild plant with a milky sap Monarch butterfly caterpillars only eat milkweed.

Synonyms: (none common); Compare: dandelion (also has milky sap)

From 'milk' and 'weed', named for the milky white sap that comes out when the stem is broken.

Think of a 'weed' that produces a 'milk'-like sap. It's famous as the food for monarch butterfly caterpillars.

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