Search results
Results From The WOW.Com Content Network
The perianth of each tiny pink flower consists of four or five lobes, fused near the base. There are six stamens, two partially fused carpels and two styles. The fruit is a rounded, flattened nut. This plant flowers from July to September in northern temperate regions. [4] [5] pale persicaria (Persicaria lapathifolia)
Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae. Plants of the genus are known commonly as knotweeds [2]: 436 or smartweeds. [3] It has a cosmopolitan distribution, with species occurring nearly worldwide. [3] [4] The genus was segregated from Polygonum. [5]
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs Alphita (c. 1400–1425), it was known as ars-smerte.
The stem nodes are slightly swollen and look somewhat like "knots", thus its common name, knotweed. Flowers, with colors ranging from white to green, are inconspicuous, have no petals, and grow all along the stems. The sepals, however, are pinkish with white edges. Seeds are egg-shaped, dark reddish brown in color, and have a smooth shiny surface.
Reynoutria japonica or Japanese knotweed, a highly invasive species in Europe and North America Index of plants with the same common name This page is an index of articles on plant species (or higher taxonomic groups) with the same common name ( vernacular name).
The Polygonaceae are a family of flowering plants known informally as the knotweed family or smartweed—buckwheat family in the United States. The name is based on the genus Polygonum , and was first used by Antoine Laurent de Jussieu in 1789 in his book, Genera Plantarum . [ 2 ]
(state flower) Dianthus caryophyllus: 1953 [50] Large white trillium (state wild flower) Trillium grandiflorum: 1987 [51] Oklahoma: Oklahoma rose (state flower) Rosa: 2004 [52] Indian blanket (state wildflower) Gaillardia pulchella: 1986 [52] Mistletoe (state floral emblem) Phoradendron leucarpum: 1893 [52] Oregon: Oregon grape: Berberis ...
The inflorescences occur in the leaf axils and consist of a group of 1-6 flowers, each on a very short (1 mm) stalk (pedicel). The flowers are green with white or pink margins, ranging in size from 2 to 4.5 mm. Each flower has five overlapping perianth segments, fused into a cup for about a third of their length, with 8 stamens and 3 carpels ...