Euphorbia hirta (sometimes called asthma-plant) is a pantropical weed, possibly native to India. It is a hairy herb that grows in open grasslands, roadsides and pathways. It is widely used as a medicinal herb.
This erect or prostrate annual herb can get up to 60 cm long with a solid, hairy stem that produces an abundant white latex. There are stipules present. The leaves are simple, elliptical, hairy (on both upper and lower surfaces but particularly on the veins on the lower leaf surface), with a finely dentate margin. Leaves occur in opposite pairs on the stem. The flowers are unisexual and found in axillary cymes at each leaf node. They lack petals and are generally on a stalk. The fruit is a capsules with three valves and produces tiny, oblong, four-sided red seeds. It has a white or brown taproot.
- English: pill-bearing spurge, asthma plant, hairy spurge, garden spurge, pillpod sandman 
- Bengali: boro-keruie, barokhervi 
- Gujarati: dudeli
- Hawaiian: Koko kahiki
- Hindi: baridhudi, dudh ghas, dudhi 
- Indonesia: Patikan Kebo
- Luganda: kasandanda
- Sanskrit: chara, amampatchairasi, barokheruie 
- Tagalog: tawa-tawa, gatas-gatas
- Twi: Kaka wie adwie
- Kinaray-a: tawa-tawa
- Tamil: Ammaan Pachcharisi 
- Telugu: reddivari nanabalu, reddinananbrolu, bidarie 
- Urdu: lal dodhak 
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- Edmon Agron, "Tawa-tawa contains active ingredients that may help dengue patient – study - eVolved by worldngayon." Worldngayon.com. Retrieved 2014-6-20
- Pratheepa, Vijayakumari; Sukumaran, NatarajaPillai (13 November 2014). "Effect of Euphorbia hirta plant leaf extract on immunostimulant response of Aeromonas hydrophila infected Cyprinus carpio". PeerJ. 2: e671. doi:10.7717/peerj.671. PMID 25405077. Retrieved 28 April 2015.
- Quy, Trinh; Ly, Le (April 2014). "An investigation of antidiabetic acttivities of bioactive compounds in Euphorbia hirta Linn using molecular docking and pharmacophore". Medicinal Chemistry Research. 23 (4): 2033–2045. doi:10.1007/s00044-013-0794.