Solanum elaeagnifolium Cav., 1794
Common names: Silver-leaved Nightshade, Silverleaf nightshade [En], Morelle jaune, Morelle à feuilles de chalef [Fr], Trompillo [Es], Σολάνο [Gr]
Thessaloniki, THESSALONIKI ● Greece
Description: Perennial from 10 cm to 1 m in height. The stems are covered with nettle-like prickles, ranging from very few on some plants to very dense on others. The leaves and stems are covered with downy hairs (trichomes) that lie against and hide the surface, giving a silvery or grayish appearance.
The leaves are up to 15 cm long and 0.5 to 2.5 cm wide, with shallowly waved edges. The flowers, appearing from April to August, have five petals united to form a star, ranging from blue to pale lavender or occasionally white; five yellow stamens and a pistil form a projecting center. The plant produces glossy yellow, orange, or red berries that last all winter and may turn brown as they dry.
Habitat: It can grow in poor soil with very little water. It spreads by rhizomes as well as seeds, and is common in disturbed habitats.
Distribution: Native from Mexico and South United States, it is a common weed of western North America and also found in South America. It is considered a noxious weed in 21 U.S. states and in countries such as Australia, Egypt, Greece, India, Israel, Italy, South Africa, and Zimbabwe.
Caution: It is toxic to livestock and very hard to control, as root stocks less than 1 cm long can regenerate into plants.
Wikipedia, Solanum elaeagnifolium