Phalaris


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Related to Phalaris: Phalaris aquatica

Phalaris

a grass genus of the Poaceae family containing some of the best pasture grasses which can, on occasion, be poisonous. Cause two kinds of poisoning: (1) acute heart failure and sudden death in sheep—caused by P. aquatica, P. arundinacea and Rhompa grass (a hybrid variety); (2) incoordination with tremor and head nodding, finally recumbency and convulsions. (Called also phalaris staggers and caused by all species.) New cases occur for many weeks after removal from the pasture. There is a characteristic gray-green discoloration of the brainstem and midbrain. Includes P. aquatica (P. tuberosa, Toowoomba canary grass), P. arundinacea (reed canary grass), P. minor (canary grass), P. angusta, P. brachystachys, P. canariensis, P. caroliniana and Rhompa grass, a hybrid form. Toxins include β-carbolines, tryptamine and indole alkaloids.
References in periodicals archive ?
anatomical studies in the inflorescence bracts of four Phalaris species
vvb c Pharos (1920, Phalaris - Scapa Flow, by Chaucer).
Nitrogen and phosphorus standing stock in Phalaris arundinacea and Phragmites australis in a constructed treatment wetland: 3-year study.
Other alternative concentrate sources such as phalaris minor seeds have also been assessed as providing appropriate carbohydrate sources to support volatile fatty acid synthesis and rumen development (Kaur et al.
a way to warn the people of Himera not to give Phalaris, who they had
The index as a method of attack is illustrated by its first practitioner, William King, when in 1816 his index entry on Dr Richard Bentley, in Dissertation on the Epistles of Phalaris, included "[His] transcribing and plundering Notes of and Prefaces of"; "His familiar acquaintance with Books he never saw"; and as recently as 1999 in Margaret Cook's memoir of her life with her husband, the British Foreign Secretary: under "Robin Cook" are listed "heavy drinking," "weight problems," and "sexual difficulties.
Phalaris minor; Phalaris bra- Reduction of grain yield
Just consider the kinds of stories that fill the history books, Sidney asks: Cypselus, Periander, Phalaris, and Dionysius were all real-world tyrants who enjoyed quiet ends, unpunished for their crimes.
Phalaris minor and wild oats are respectively a serious problem since long in rice-wheat and cotton-wheat zones of Punjab [Ahmed, et al.
These strategies include stock exclusion, adding lime to the soil, planting perennial pastures and trees that use up water and planting salt tolerant vegetation such as phalaris, fescue, strawberry clover or tall wheat grass.
The herbaceous species identified, such as the Cruciferae, as well as Adonis, Salsola, Suaeda, Setaria and Phalaris, are typical of the Central Asian shrub desert steppe (Miller 1993; Walter & Box 1983: 200).
Other less frequent grasses include Elymus repens, Phalaris arundinacea (in the ditch), and Phleum pratense.