Black nightshade

Black nightshade flowers Black nightshade is a common herb or short-lived perennial shrub, found in many wooded areas, as well as disturbed habitats. It reaches a height of 30 to 120 cm (12 to 47 in), leaves 4.0 to 7.5 cm (1.6 to 3.0 in) long and 2 to 5 cm (1 to 2 in) wide; ovate to heart-shaped, with wavy or large-toothed edges; both surfaces hairy or hairless; petiole 1 to 3 cm (0.5 to 1 in) long with a winged upper portion. The flowers have petals greenish to whitish, recurved when aged and surround prominent bright yellow anthers. The berry is mostly 6 to 8 mm (0.24 to 0.31 in) in diam., dull black or purple-black. In India, another strain is found with berries that turn red when ripe.Sometimes S. nigrum is confused for the more toxic deadly nightshade (Atropa belladonna), which is in a different genus within Solanaceae. A comparison of the fruit shows that the black nightshade berries grow in bunches, whereas the deadly nightshade berries grow individually. Growth habitEdit The suited soil pH value of black nightshade is between 5.5 and 6.5. It is rich in organic matter, water and fertility on the strong soil growth, in the lack of organic matter, poor ventilation clay, its roots will be stunted, plant growth is weak, commodity is poor. It is difficult to grow under the condition of high temperature and high humidity, the plant grows slowly, the tender shoot is easy to aging fiber, and the commodity is poor.