![]() ![]() It has small, dark green leaves and produces small white or purple flowers. The black nightshade is a annual herb that grows up to two feet tall. Infested wetlands eventually become a monoculture of loosestrife. This pesky weed can be found in gardens, landscapes, and even potted plants. Infestations rapidly replace native vegetation, can impede water flow in canals and ditches, and have little wildlife habitat value. It commonly occurs in marshes, wet meadows, riverbanks, ditches, stream margins, shores of lakes and wetlands.It can tolerate a wide range of conditions (up to 50% shade), can grow on calcareous and acidic soils, and will even grow in standing water. ![]() Purple loostrife is a native of Eurasia and was first recorded in America in 1814. Western Society of Weed Science, in cooperation with the Western United States Land Grant Universities Cooperative Extension Services, Newark CA. Canadian Journal of Plant Science 72:1305-1330. Leaves: Leaves are simple, entire, 2-5 inches long, lance-shaped, and are opposite or whorledįruit: Fruits are many-seeded capsules, seeds are small and ovoid. Plants become taller and bushier over the years as the rootstock matures. Stems: Erect annual stems arise from a perennial rootstock. Flowers appear late June-September.įlowers: Purple with 5-7 petals arranged in long vertical racemes, flowers in June-August They are pinkish-purple in color, about one inch long, and have 5-7 petals. Flowers are tightly grouped in long, vertical heads they bloom from the bottom up. Leaves are 2-5 inches long, lance-shaped and whorled on the stems. Purple loosestrife produces multiple four-sided stems that can grow two to eight feet tall. This broadleaf perennial weed has compound leaves with 3 broad leaflets that you’re probably very familiar with. Pieces of roots or stems also can produce new plants. Weeds With Purple or Blue Flowers Tall Flowering Weeds Weeds With White Flowers White Clover Weed Identification White clover is one of the most common lawn weeds. A single, mature plant can produce up to three million seeds per year, which remain viable for 5 to 20 years. The tall weeds with purple flowers are called mullein and henbit. Purple loosestrife reproduces primarily by seed. Purple loosestrife (Lythrum salicaria) perennial forb native to Europe and was introduced to North America as an ornamental plant for gardens. ![]()
0 Comments
Leave a Reply. |