''Operculina turpethum'' (syn. ''Ipomoea turpethum'') is a species of plant in the morning glory family, known commonly as turpeth, fue vao, and St. Thomas lidpod. It is large, robust,

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of ...

, and hairy

vine A vine is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas, or runners. The word ''vine'' can also refer to such stems or runners themselves, for instance, when used in wicker work.Jackson; Benjamin; Da ...

growing 4 to 5 meters in length. It is found in

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

, in the North Circars and

Deccan The Deccan is a plateau extending over an area of and occupies the majority of the Indian peninsula. It stretches from the Satpura and Vindhya Ranges in the north to the northern fringes of Tamil Nadu in the south. It is bound by the mount ...

region up to 3000 ft, East Africa, Papua New Guinea and Australia in both

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

and the

Northern Territory The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...

of Australia, near Shoal Bay and

Maria Island Maria Island or wukaluwikiwayna in palawa kani is a mountainous island located in the Tasman Sea, off the east coast of Tasmania, Australia. The island is entirely occupied by the Maria Island National Park, which includes a marine area of o ...

. The leaves are alternate, very variable in shape,

ovate Ovate may refer to: * Ovate (egg-shaped) leaves, tepals, or other botanical parts *Ovate, a type of prehistoric stone hand axe * Ovates, one of three ranks of membership in the Welsh Gorsedd * Vates or ovate, a term for ancient Celtic bards ...

, oblong and truncate or

cordate Cordate is an adjective meaning ' heart-shaped' and is most typically used for: * Cordate (leaf shape), in plants * Cordate axe, a prehistoric stone tool See also * Chordate A chordate ( ) is a bilaterian animal belonging to the phyl ...

at the base approximately 5.5 - 15cm long. Its flowers are white, large,

axillary Axillary means "related to the axilla (armpit)" or "related to the leaf axils". "Axillary" may refer to: Biology * Axillary artery * Axillary border * Axillary fascia * Axillary feathers * Axillary hairs * Axillary lines * Axillary lymph nodes ...

, and solitary. The fruit is a capsule up to 1.5 cm in diametre, with conspicuous enlarged

sepals A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...

and thickened pedicles. It is actually not a purgative but a mild laxative.

References

External links

* Contains a detailed monograph on Operculina turpethum (Trivrit), as well as a discussion of health benefits and usage in clinical practice. Available online at http://www.toddcaldecott.com/index.php/herbs/learning-herbs/337-trivrit {{Taxonbar, from=Q3595168 Convolvulaceae