It can be eaten raw, boiled and as flour (after drying and grinding). Nutrients In Singhara or Water Chestnut (Trapa bispinosa). Singhara is rich in proteins, carbohydrates, amylose,citric acid, vitamin B, C, iron, calcium, magnesium, phosphorus, iodine,manganese,phophorylase and contains negligible fat. Singhara is very rich in carbohydrate and 100 gm of it gives 115 calories. 2  It help in proper functioning of thyroid. 3  The fruits are used to treat sore throat, anemia, fractures, urinary disorders, and in leprosy.
Quercus marcocarpa, the bur oak, is the tree featuring the largest acorns of any North American oak species, notes the âNational Audubon Society Field Guide to Trees: Eastern Region.â In comparison to the fruits of other oaks, they are huge.
For example, acorn production in a northern red oak generally peaks when the tree diameter at breast height (dbh) (4.5 feet above the ground) reaches 20 inches and then gradually declines as the tree grows larger (Figure 9). In contrast, acorn production in white oaks peaks at about 26 inches dbh. Table 2.