Ads
related to: polygonum plant stem
Search results
Results From The WOW.Com Content Network
When the genus is defined narrowly, Polygonum species are annual or perennial herbaceous plants, rarely shrubby, with much branched stems.The leaves are arranged alternately, usually less than 2 cm (0.8 in) long, with a length greater than the width.
Stem showing internode and nodes plus leaf petioles This above-ground stem of Polygonum has lost its leaves, but is producing adventitious roots from the nodes. Xylem and Phloem. A stem is one of two main structural axes of a vascular plant, the other being the root.
Polygonum propinquum Ledeb. 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.
Polygonum polygaloides is an annual herb producing slender, wiry green stems 1 to 30 centimeters (0.4–12 inches) in length. The linear or lance-shaped leaves are alternately arranged uniformly along the stem, the ones near the tips of stem branches highly reduced. The leaves have membranous stipules which fuse to form silvery ochrea at the ...
Persicaria perfoliata (basionym Polygonum perfoliatum [1]) is a species of flowering plant in the buckwheat family. Common names include mile-a-minute, devil's tail, giant climbing tearthumb, [2] [3] and Asiatic tearthumb. [4] It is a trailing herbaceous annual vine with barbed stems and triangular leaves.
Polygonum ramosissimum has erect stems growing 30 to 100 cm (12 to 39.5 in) (sometimes to 200 cm or 80 inches) tall, with yellowish-green to blue-green foliage. The stems are freely branched with closed flowers produced in groups of (1) 2 to 3(5) flowers in the upper ocreae of racemes that are up to 15 cm (6 in) long, the inflorescences are spike-like.
Stem and inflorescence Reynoutria sachalinensis is a herbaceous perennial plant growing to 2–4 m (79–157 in) tall, with strong, extensively spreading rhizomes forming large clonal colonies . The leaves are some of the largest in the family, up to 15–40 cm (6–15.5 in) long and 10–28 cm (4–11 in) broad, nearly heart-shaped, with a ...
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] The name may refer to the many swollen nodes the stems of some species have, being derived from Greek [poly meaning 'many' and gony meaning 'knee' or 'joint']. Alternatively, it may have a different origin ...