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Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...
The plant is poisonous, containing cardiostimulant compounds such as adonidin and aconitic acid. [42] Aesculus hippocastanum: horse-chestnut, buckeye, conker tree Sapindaceae: All parts of the raw plant are poisonous due to saponins and glycosides such as aesculin, causing nausea, muscle twitches, and sometimes paralysis. [43] Agave spp.
Physostigma venenosum, the Calabar bean or ordeal bean, is a leguminous plant, Endemic to tropical Africa, with a seed poisonous to humans.It derives the first part of its scientific name from a curious beak-like appendage at the end of the stigma, in the centre of the flower; this appendage, though solid, was supposed to be hollow (hence the name from φῦσα, a bladder, and stigma).
Toxicoscordion venenosum var. venenosum flowers at the University of California Botanical Garden, Berkeley. The inflorescence usually does not have branches and is a raceme, but will sometimes have one or two branches near the base and be a panicle. [7] If a plant does have branches, they will be one tenth to one third the length of the stem.
Here’s how to identify a plants before you get hurt. Noxious weeds can be deadly for humans, animals and other plants in your garden. Here’s how to identify a plants before you get hurt.
Amianthium is a North American genus of perennial plants growing from bulbs. It contains the single known species Amianthium muscitoxicum, known in English as fly poison from a literal translation of the Latin epithet muscitoxicum, and is noted for its pretty flowers and its toxic alkaloid content. While all parts of the plant are poisonous ...
The plant genus Coriaria produces poisonous honey, due to the toxin tutin. [34] Morphine-containing honey has been reported in areas where opium poppy cultivation is widespread. [35] Tecoma stans is a nontoxic plant, but honey from its flowers is poisonous. [36] [37] Plants including Rhododendron and heathers produce the neurotoxin grayanotoxin ...
Conium maculatum, known as hemlock (British English) or poison hemlock (American English), is a highly poisonous flowering plant in the carrot family Apiaceae, native to Europe and North Africa. It is herbaceous without woody parts and has a biennial lifecycle. A hardy plant capable of living in a variety of environments, hemlock is widely ...