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Many species of insects feed on knotgrass, including the eponymous Knot Grass moth, Acronicta rumicis, whose larvae are phytophagous on the leaves. The UK's Database of Insects and their Food Plants lists 113 species which are known to feed on this plant in Britain, of which 10 are beetles , 2 are flies , 8 are Hemiptera (bugs and aphids), and ...
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.
Persicaria lapathifolia (syn. Polygonum lapathifolium), known as pale persicaria, [2] is a plant of the family Polygonaceae. It is considered to be native throughout most of the world, from arctic to tropical realms, except South America and Southern Africa. [ 3 ]
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.
Polygonum arenastrum, commonly known as equal-leaved knotgrass, [2] is a summer annual flowering plant in the knotweed family Polygonaceae.Other common names include common knotweed, prostrate knotweed, mat grass, oval-leaf knotweed, [3] stone grass, wiregrass, and door weed, as well as many others.
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 ]
Poa annua, or annual meadow grass (known in America more commonly as annual bluegrass or simply poa), is a widespread low-growing turfgrass in temperate climates. Notwithstanding the reference to annual plant in its name, perennial bio-types do exist. [2] This grass originated as a hybrid between Poa supina and Poa infirma. [3]
Stems may be pale green to red in color. The leaves are oval and pointed or widely-lance-shaped to somewhat triangular, yellowish or pale green and waxy, slightly hairy, or smooth in texture. Leaf edges are entire or minutely toothed. At the base of each leaf is a thin reddish sheath formed from the leaf's stipules which is known as the ochrea. [4]