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"Aconite (Aconitum Napellus)"

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Aconite (Aconitum Napellus)

This page contains information regarding a plant "known to be poisonous" to goats as well as other animals. This information was researched from various resources. Please note, that the author is not a botanist or specialist regarding plants. This information is posted for your reference and comparison purposes only.

ALSO KNOWN AS:
Wolfsbane, Helmet Flower, Mourning Bride, Thor's Hat, Monkshood, Blue Rocket, Friar's Cap, Auld Wife's Huid

Aconite - Click for a full size image Aconite - Click for a full size image Aconite - Click for a full size image

DESCRIPTION:
Alkaloid Containing Plant - Found is many colors (blues, whites, yellows, etc.). The plant is a hardy perennial, with a fleshy, spindle-shaped root, palecoloured when young, but subsequently acquiring a dark brown skin. The stem is about 3 feet high, with dark green, glossy leaves, deeply divided in palmate manner and flowers in erect clusters of a dark blue colour. The shape of the flower is specially designed to attract and utilize bee visitors, especially the humble bee. The sepals are purple - purple being specially attractive to bees - and are fancifully shaped, one of them being in the form of a hood. The petals are only represented by the two very curious nectaries within the hood, somewhat in the form of a hammer; the stamens are numerous and lie depressed in a bunch at the mouth of the flower. They are pendulous at first, but rise in succession and place their anthers forward in such a way that a bee visiting the flower for nectar is dusted with the pollen, which he then carries to the next flower he visits and thereby fertilizes the undeveloped fruits, which are in a tuft in the centre of the stamens, each carpel containing a single seed.

In the Anglo-Saxon vocabularies it is called thung, which seems to have been a general name for any very poisonous plant. It was then called Aconite (the English form of its Greek and Latin name), later Wolf's Bane, the direct translation of the Greek Iycotonum, derived from the idea that arrows tipped with the juice, or baits anointed with it, would kill wolves - the species mentioned by Dioscorides seems to have been Aconitum lycotonum. In the Middle Ages it became Monkshood and Helmet-flower, from the curious shape of the upper sepal overtopping the rest of the flower. This was the ordinary name in Shakespeare's days.

The generic name is said to have been derived from, a dart, because it was used by barbarous races to poison their arrows, or from akone, cliffy or rocky, because the species grow in rocky glens. Theophrastus, like Pliny, derived the name from Aconae, the supposed place of its origin. The specific name, Napellus, signifies a little turnip, in allusion to the shape of the roots.

DANGEROUS PARTS OF PLANT:
All parts of aconite plant are poisonous, especially the root tubercles.

SIGNS:
There are a number of homeopathic potions and rememdies available that contain small amounts of aconite. The most common use of aconite in small proportions is for the control of fever (humans).

TOXICITY RATING:
High

ANIMALS AFFECTED:
All. Goats may browse this plant in very small amounts. There is a fine line between a "healthy" amount and a "toxic" amount if foraged.

CLASS OF SIGNS:
Sudden and intense onset, dry red skin without perspiration, unquenchable thirst for cold water, extreme restlessness, anxiety. In a moderate dose of five minims of the tincture, a sense of numbness and tingling is felt in the tongue and lips, with muscular weakness and depression; by doubling the dose these symptoms are intensified and prolonged, the pulse falls and the breathing is slowed. A poisonous dose causes tingling in the skin, pain in the joints, vertigo, dimness of vision, extreme debility, pulse forty to fifty per minute and irregular, skin cool and moist, burning heat in the esophagus and stomach, nausea, vomiting and purging. There may be severe gastric and intestinal spasms, headache, complete loss of sight, hearing and speech, while consciousness remains; pupils dilated. muscles tremulous or convulsed, pulse imperceptible; death by syncope.

Aconite acts on the vaso-motor nervous system. It is a powerful depressant of the heart, and if given in sufficient quantity will paralyze that organ. Its apparent influence is upon the terminal filaments of the sensory nerves first, and afterwards, more slowly, upon the nerve trunks. It depresses the nerve centers of the cord, and destroys reflex activity and voluntary power.

A drop of a solution of aconite in the eye causes the pupil to contract. Larger amounts induce toxic symptoms, the principal of which are increase of tingling and numbness, excessive perspiration, rapidly lowering temperature, pupillary dilation, dimness of sight, loss of hearing and sense of touch, and diminished action of the sensory filaments supplying the skin.

Muscular weakness is marked; trembling and occasional convulsions may ensue. Excessive depression comes on, and the power of standing is early lost. The feet and legs become. cold, the face pale, and the patient has a tendency to faint. There may be violent burning in the stomach with great thirst and dyspagia, and vomiting and diarrhea may occur. The pulse is weak, rapid, and almost imperceptible; acute, lancinating pain may be felt, and more or less delirium may result, though as a rule the intellect remains unimpaired.

"The manner in which aconite affects the nervous system is not yet definitely known. That it is a heart paralyzer seems to be an accepted fact. Death may result from syncope, though usually it occurs from respiratory paralysis. The action of a lethal dose is rapid, toxic symptoms showing themselves within a few moments." (Lloyd and Felter.)

FIRST AID:
If a full toxic dose be taken, the above symptoms advance most rapidly, and no time whatever should be lost in combating the influence of the agent. It has no known physiological antidote. The conditions must be met according to their indications. If there is any reason for believing that the stomach contains any of the agent, large quantities of warm water should be swallowed and immediately evacuated. It may be vomited or siphoned out with a long stomach tube, or pumped out, but extreme nauseating emetics are contra-indicated. A mild infusion of oak bark, drunk freely, serves the double purpose of diluting the aconite and antidoting it by the tannin it contains. Tannic acid is believed to be a chemical antidote to a limited extent, and given in suspension in water is efficient.

The most immediately diffusible stimulants must then be given freely. Alcoholic stimulants, ammonia, capsicum in a hot infusion, and digitalis, strophanthus or atropine by hypodermic injection, or nitro- glycerine are most serviceable remedies. External heat continually and electricity are demanded. Lobelia should prove valuable. A pint of vinegar, diluted, saved one life.

SAFETY IN PREPARED FEEDS:
Any part of this plant should be avoided in feed until more research in done.

PREVENTION:
Avoid allowing goats to freely browse this plant. Planting of this flower should be limited to areas where goats will not have access to. In areas abundant in aconite vegetation, care should be taken to provide ample amounts of feed whereas the goats will not be forced to ingest large amounts of this plant. Again, goats may browse small quantities of this plant with no apparent or adverse reactions.

Please note, that the author is not a botanist or specialist with plants.
This information is posted for your reference and comparison purposes only.

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