(v.) An annual composite plant (Senecio vulgaris), one of the most common and widely distributed weeds on the globe.
(n.) Alt. of Groundsill
Example Sentences:
(1) The toxicity of Riddell groundsel (Senecio riddellii) gavaged to calves at a known lethal rate was compared with the toxicity of riddelliine and riddelliine N-oxide, the pyrrolizidine alkaloids isolated from the plant, which were fed by intraruminal infusion.
(2) Selected case reports from closely controlled experimental feedings of Senecio jacobaea (tansy ragwort), S longilobus (threadleaf groundsel) and S riddellii (Riddell's groundsel) to cattle are presented to show that all 3 of these pyrrolizidine alkaloid-containing plants may not necessarily induce proximate toxicity, but may cause typical signs and death many months after the plants are ingested.
(3) The toxicity of Riddell's groundsel (Senecio riddellii) fed to calves in gelatin capsules, by gavage, or mixed in their hay ration was determined.
(4) On-line separations of pyrrolizidine alkaloids from extracts of Senecio jacobaea (tansy ragwort) and Senecio vulgaris (common groundsel) were done using an ammonium hydroxide-containing mobile phase.
(5) Four of the species extinct in England also became extinct globally: the penguin-like great auk; Mitten's beardless moss; York groundsel, a weed only discovered in the 1970s; and the Ivell's sea anemone, last seen in a lagoon near Chichester.