Convolvulaceae (weeds) - (convolvulus family, morningglories)
The convolvulus family contains more than 2,000 species which are common in the tropics and subtropics. It includes sweet potato, grown for its tubers, and several species grown for their leaves. Various species are important weeds, for example ivyleaf morningglory, Ipomoea hederacea, or threelobe morningglory, Ipomoea triloba, which infest a number of field crops (e.g. cotton, soybean, sugarcane) in the Americas.
The species are mainly perennial and climbing plants. They can be recognized by their solitary, colourful and funnel-shaped flowers, composed of 5 fused petals. The fruits are mostly capsules with 4 seeds. The leaves are simple or lobed.
The following genera and individual weed species are currently entered under this family: