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.
Quick Answer. Acorns, the seeds of oak trees, fall off their parent trees when they mature, which typically occurs between September and early November in the United States. The exact time of maturation varies slightly with different types of oak trees. Maturation of an acorn takes six to 24 months, depending on species. The color of an acorn changes from green to dark brown as it matures. Acorns may also fall off trees if the branches are shaken. When the trees are plentiful, acorns are an essential food source for the local wildlife.