agropyron repens

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Related to agropyron repens: couch grass, Twitch grass

couch grass

Herbal medicine
A perennial grass, the rhizomes of which contain inositol, mannitol, mucilage, saponin, vitamins A and B, and volatile oil; it is antimicrobial, diuretic and a liver tonic, and has been used to treat urinary tract disease, kidney stones and prostatitis.
References in periodicals archive ?
Second, prior to 1989, N addition had shifted the plant community to a high biomass of species with high tissue N and low secondary chemical content, e.g., the grasses Agropyron repens and Poa pratensis (Tilman 1987).
Effect of soil temperature and moisture on glyphosate and photoassimilate distribution in quackgrass (Agropyron repens).
Differences in growth of four clones of Agropyron repens (L.) Beauv.
Effects of decreasing the light intensity on growth of Agropyron repens (L.) Beauv.
Variation in growth of seedlings and clones of Agropyron repens (L.) Beauv.
[CV.sub.species] was significantly (P [less than] 0.05) [TABULAR DATA FOR TABLE 1 OMITTED] positively correlated with [SR.sub.84-94] for Agropyron repens, independent of [SR.sub.84-94] for Panicum oligosanthes and Artemisia ludoviciana, and significantly negatively correlated with [SR.sub.84-94] for Schizachyrium scoparium and Poa pratensis.
Late-season Panicum virgatum and early-season Agropyron repens were most prevalent in 1988 before the first burn cycle and decreased thereafter; Panicum best held its own in plots burned in early spring, whereas Agropyron persisted only in plots burned in midsummer.
([double dagger]) Early Agropyron repens and Rudbeckia hirta were all but absent in 1993 except in plots burned in midsummer; ANOVAS with all or most cells empty from other treatments are inappropriate.
After two burn cycles, uneven presence (resulting in high variance and low mean cover) precluded statistical demonstration of responses by Agropyron repens, Erigeron annuus, and Rudbeckia hirta that were evident after one burn cycle (Howe 1994a), when mean cover was higher and each species was present in most plots.
The portion of those plots that was sampled in 1992 was disturbed by pocket gophers during the preceding year, and species that are characteristic of such disturbances were able to establish in what had been near monocultures of Agropyron repens.
A few species, especially Poa pratensis and Agropyron repens, dominated high nitrogen plots once they were present on them.