Humble in appearance yet powerful in reputation, Euphorbia hirta—better known as asthma weed, snakeweed, or tawa-tawa—has long been hailed as “green gold” in traditional medicine. Across Asia, Africa, and Latin America, this small hairy herb has earned a place in folk remedies, and science is now uncovering why.
Euphorbia hirta is a member of the spurge family (Euphorbiaceae). It grows abundantly in fields, roadsides, and even…



