Tell me anything you know about milkweed plants?

Question

Thanks. :)

Answer 1

They have milky sap and are actually poisonous.

They are the main food of Monarch butterflies.

The caterpillars feed on the leaves and the poison accumulates in their bodies but they are immune to it.

When they turn into butterflies they are still loaded with it and if a bird eats them it gets sick.

Birds learn fast to not eat monarch butterflies.

The reduction of milkweed through our weed control programs has reduced the number of monarch butterflies.