Any broken part of milkweeds wards off herbivores via a poisonous latex that it exudes.
"Milkweed gets its name from a poisonous latex that exudes from its broken stem. This is so toxic that it can give a small animal a heart attack." (Attenborough 1995:70-71)
Learn more about this functional adaptation.
- Attenborough, D. 1995. The Private Life of Plants: A Natural History of Plant Behavior. London: BBC Books. 320 p.
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