pūwhā
1. (noun) perennial sowthistle, Sonchus arvensis, sowthistle, Sonchus oleraceus , prickly sowthistle, Sonchus asper and Sonchus kirkii - small leafy plants with thistle-like leaves and milky juice. They are boiled and eaten as a green vegetable. Sonchus kirkii is the only one native to Aotearoa/New Zealand.