Ipomoea fistulosa Mart. ex Choisy
Ipomoea carnea, the pink morning glory, is a species of morning glory. This flowering plant has heart-shaped leaves that are a rich green and 6–9 inches (15–23 cm) long. It can be easily grown from seeds which are toxic and it can be hazardous to cattle; the toxicity is related to the swainsonine produced by endophytes  and to bioaccumulation of selenium species in leaves but mostly in seeds
The stem of I. carnea can be used for making paper. The plant is also of medicinal value. It contains a component identical to marsilin, a sedative and anticonvulsant. A glycosidic saponin has also been purified from I. carnea with anticarcinogenic and oxytoxic properties.
In Brazil, I. carnea (in addition to other common names) is known as canudo-de-pito, literally "pipe-cane", as its hollow stems were used to make tubes for tobacco pipes. It thus became the namesake of Canudos, a religious community in the sertão of Bahia, over which the War of Canudos was fought 1893–1897.
Media related to Ipomoea carnea at Wikimedia Commons
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