water hemlock造句

• Another reliable method to identify water hemlock is to examine the leaf veins.
• This root structure allows the water hemlock to adapt and survive wet conditions.
• Water hemlock is most abundant in British Columbia, and is indigenous to North America.
• Hundreds of plants _ parsley, water hemlock, early goldenrod _ seem to have vanished.
• Water hemlock is considered one of North America's most toxic plants, being highly poisonous to humans.
• Water hemlock has a branched root systems with tubules, while poison hemlock has a single tap root.
• Seed dispersal for water hemlock seeds comes from means of wind, water, machinery, on clothing, and through transported soil.
• Ingestion of water hemlock " "'in any quantity " "'can result in death or permanent neurological damage of the central nervous system.
• One gram of water hemlock per kilogram of weight will kill a sheep and 230 grams is sufficient to kill a horse.
• The common name hemlock waterparsnip is an alternate common name due to its similarity to spotted water hemlock ( " Cicuta maculata " ).
• "' Cicutoxin "'is a poisonous polyyne and alcohol found in various plants, such as the highly toxic water hemlock ( " Cicuta " species ).
• The characteristics of water hemlock include its stem which is 0.5 2 meters tall with purplish spots, thick roots, and leaves that are compound pinnate and alternate.
• There are also a number of endangered species in the region, including water hemlock ( Cicuta virosa ), fluvial Oenanthe ( Oenanthe fluviatilis ) and Stratiote false aloe ( Stratiotes aloides ).
• The exact toxic dose of plant material in humans is unknown; it is thought ingestion of water hemlock in any quantity can result in poisoning and very small amounts may lead to death.
• He conducted experiments on the toxicity of water hemlock, hellebore, monkshood, and warned against the usage of arsenic, antimony, and water and poison hemlock called " Cicutae aquaticae historia et noxae " ( 1679 ).
• Additionally, there can be confusion between the various water hemlock species and poison hemlock ( " Conium maculatum " ) as the common name hemlock is applied to both " Cicuta " and " Conium maculatum ".
• Herbal solutions used as remedies for ailments could be ingested as tea, used as ointments, or poultices or inhaled as smoke or steam from a decoction . western water hemlock, ( " Cicuta douglasii, poison hemlock " ).
• Water Hemlock is unique in the Apiaceae family in that it has leaf veins which terminate in the notches between the leaf tips, rather than extend to the tip of the leaf, as is found in the leaf structure of other members of this family.