Convolvulaceae (convolvulus, bindweed, or morning glory family) » Operculina turpethum

oh-per-koo-LEE-nuh -- possibly means lid; the seed pod has a lid-like top tur-PAY-thum -- derived from Sanskrit triputa, the dried root and stem of this plant

commonly known as: Indian jalap, St. Thomas lidpod, transparent wood rose, turpeth root, white day glory • Hindi: निशोथ nisoth, पिठोरी pitohri • Kannada: aluthi gida, bangada balli, bilitigade, devadanti, nagadanti • Malayalam: tigade • Marathi: निसोत्तर or निशोत्तर nisottar • Sanskrit: निशोत्र nishotra, त्रिपुट triputa, त्रिवृथ trivrutha • Tamil: adimbu, சரளம் caralam, சிவதை civatai, கும்பஞ்சான் kumpncan, பகன்றை paganrai • Telugu: తెగడ tegada, త్రివృత్ తెల్లతెగ trivrut tellatega

... perennial herbaceous, somewhat hairy vine reaching a length of 5 meters or more ... stems often purplish, prominently 2- to 4- angled, and narrowly winged ... leaves are entire or undulate, ovate, 5 to 15 cm long, narrowing to a pointed tip, and broad, somewhat heart-shaped, or straight at the base.

... inflorescences (cymes) have few straight flowers, often 2-flowered, and are borne in the axils of the leaves ... sepals are green, and ovate to oblong-ovate; the outer two, 2 to 3 cm long, are larger than the inner three, and hairy, somewhat fleshy.

... white corolla, bell-shaped, about 4 cm long, with the limb 4 cm wide.