Stevia extract is a natural sweetener. Whole foods proponents draw a distinction between consuming (and safety testing) only parts, such as stevia extracts and isolated compounds like stevioside, versus the whole herb.

India: madhu parani (Marathi), madhu-pattha (Punjabi), madhu patra (Sanskrit), seeni tulsi (Tamil), madhu patri (Telugu)

China: 甜菊 (tián jú – sweet chrysanthemum), 甜菊叶 (tián jú yè – stevia leaf)

Dutch-speaking countries: honingkruid (honey herb)

English-speaking countries:candy leaf, sugar leaf, sweetleaf (USA)
sweet honey leaf (Australia)
sweet herb of Paraguay etc.