Scientific Name: Solanum elaeagnifolium
Common Names: Silverleaf Nightshade, Purple Nightshade, White Horsenettle, Tomato Weed, Trompillo
Growth Habit: Subshrub, Herb/Forb
Arizona Native Status: Native
Habitat: Desert, Upland. This prickly weed is most common in highly disturbed areas like at the edge of fields and in overgrazed pastures, drainage ditches, and vacant lots.
Flower Color: Purple to violet-blue, White (rare)
Flowering Season: Spring, Summer, Fall
Height: To 3 feet (91 cm) tall
Description: The flowers are 1 inch (2.5 cm) across and have 5 ruffled, wrinkled lobes and 5 non-fused stamens. The flowers are followed by round, green ripening to yellow fruit. The ripe fruits look very much like small yellow cherry tomatoes. The leaves have wavy edges and are alternate, silvery green in color, leathery, hairy, and oblong to lance-shaped. The stems are spiny.
Poisonous – The plants, especially the leaves and green, unripe, cherry tomato-like fruit, are poisonous and contain the glycoalkaloid solanine as well as the tropane alkaloids scopolamine (hyoscine) and hyoscyamine (an isomer of atropine).
Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Family: Solanaceae – Potato family
Genus: Solanum L. – nightshade
Species: Solanum elaeagnifolium Cav. – silverleaf nightshade
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