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Poisonous Plants: Morning Glory (Ipomoea) Lupin, Aconite (Monks Hood also known as Wolfs Bane)

Updated on April 10, 2018
Gloriousconfusion profile image

I love gardening, learning gardening techniques and designs, and photographing and painting plants. Member of Royal Horticultural Society.

There Are A Lot More Poisonous Garden Plants Than Most People Realize

They are not necessarily deadly poisonous, but even milder symptoms can be unpleasant, even frightening, so a bit of forewarning and knowledge may prevent a nasty surprise.

To this end, I have written a series of articles about poisonous plants, with photographs to help you to identify them. You might be shocked to learn how our pretty little friends can have such treacherous characteristics.

"They're After Me!"

Is She Hallucinating Or Merely Experiencing Something We Can't See?
Is She Hallucinating Or Merely Experiencing Something We Can't See?

Aconite (Monk's Hood), Morning Glory (Ipomea) and Lupin

Aconite is a well-known poison, but did you know that those beautiful flowering plants, Morning Glory and Lupin are also poisonous plants?

The problem is, most people simply don't know enough about poisonous plants, even though they may be handling them regularly in the garden. And why would they know, if they haven't been taught at school?

Should plant suppliers take more responsibility for educating gardeners, maybe putting warning labels on plant pots? Is this something schools should be teaching, along with morality, science and nutrition?

Perhaps there could be poisonous plant charts in doctors' surgeries, pharmacies and garden centres.

Just a thought.

Now that I've had that thought, maybe I should take it further.

The Most Important Things To Remember Are:

Don't put anything in your mouth unless

you know for certain that it is safe

Don't allow plant excretions to get on to your skin and

in particular don't let them get into sores and cuts

Don't suck your fingers in the garden without first washing them and


(that is, unless you are planning on despatching them

to the hereafter sooner rather than later)

Poisonous Plant Morning Glory (Ipomoea)


Poisonous Plant: Morning Glory (Ipomoea) -

What's the story, morning glory? This plant is poisonous, that's the story

Morning Glory (Ipomoea ssp) is in the same family as bindweed and sweet potato vines. They all contain toxic indole alkaloids. The entire plant contains LSD-related hallucinogens and may contain toxic levels of nitrates.

Poisonous Parts: Seeds or skin contact with sap.

Symptoms: Hallucinations, dilated pupils, nausea, vomiting, diarrhoea, drowsiness, numbness of extremities, headache and muscle tightness.

I have researched copiously and have not found any instances of fatal poisoning. Rather more research turned up the fact that it is a hallucinogen similar to LSD used in Shamanic rituals and generally by the indiginous Americans.

Poisonous Plant Lupin

Poisonous Plant: Lupin

Lupin poisoning affects people who eat incorrectly prepared lupin beans. Lupin bean poisoning is uncommon and medics may not recognize it. White Lupin beans closely resemble fava and lima beans and may be confused with a new variety of these by people who are not from the cultures familiar with traditional lupini preparation methods that ensure safety and minimize bitterness.

Improper preparation of bitter lupini with insufficient soaking allows pharmacologically significant amounts of anticholinergic alkaloids to remain in the beans, and poisoning symptoms result.Some people like bitter herbs and may mistakenly prepare and eat lupini without enough soaking if they have not learned of its unique preparation requirements.

Symptoms: Symptoms of lupin bean poisoning (from excess alkaloid in cooked food) include dilated unresponsive pupils, blurry vision, confusion, slowed thought and disorientation, flushed face and/or fever, palpitations,high heart rate and blood pressure, tremors, difficulty with or slurred speech, un-coordination, dizziness, burning dry mouth, stomach pain, and anxiety or "malaise".


It is important to store dry lupini beans in their original container

so that the label is present in case it needs to be identified in the event that someone becomes ill from eating poorly prepared beans

Poisonous Plant Aconite (Wolf's Bane, Monk's Hood)

Poisonous Plant: Aconite (Monk's Hood, Wolf's Bane) - Aconite Looks So Beautiful But Take Care - It's A Deadly Poison

Aconites are very ornamental, hardy perennial plants and will grow in the shade of trees. They are easily propagated by divisions of the root or by seeds; care should be taken not to leave pieces of the root where livestock might be poisoned.

Aconite roots are extremely toxic.

Several species of Aconitum have been used as arrow poisons for hunting and warfare.

If the leaves are picked without wearing gloves, the aconite toxin in the sap oozing from the picked leaves is absorbed easily through the skin causing cardiac symptoms for a couple of hours.

Traditional Uses:

Aconite is often used in traditional Chinese and Indian medicines as an analgesic or an anti-inflammatory agent.

It has also been used to treat pains, agitation and indigestion. If applied to the skin or to a mucous membrane, aconite first stimulates and later paralyses or numbs the nerves to the sensations of pain, touch, and temperature; the initial tingling therefore gives place to a long-continued anaesthetic action. Great caution is required, as skin with abrasions could absorb a dangerous dose of the drug, and merely tasting some of the concentrated preparations available could be fatal. At least eleven alkaloids in aconite with varying potency and stability are responsible for the local anaesthesia of peripheral nerves.


Symptoms appear quickly following the ingestion of a poisonous dose of aconite, starting with nausea, vomiting, and diarrhoea. These are followed by a sensation of burning, tingling, and numbness in the mouth and face, and of burning in the abdomen. In severe poisoning, pronounced motor weakness occurs and sensations of tingling and numbness spread to the limbs. Cardiovascular features include hypotension, bradycardia, sinus tachycardia, and ventricular arrhythmias. Other features may include sweating, dizziness, difficulty in breathing, headache, and confusion. The main causes of death are irregular heartbeat and asystole.

If the poison has been absorbed through the skin, tingling will start at the point of absorption and extend up the arm to the shoulder, followed by unpleasant numbness after which the heart will start to be affected. .


All patients require close monitoring of blood pressure and cardiac rhythm. Gastrointestinal decontamination with activated charcoal can be used if given within 1 hour of ingestion. The major physiological antidote is atropine, which is used to treat bradycardia. Other drugs are also used for ventricular arrhythmia. Cardiopulmonary bypass is sometimes used. Successful use of charcoal hemoperfusion has been claimed in patients with severe aconite poisoning.

Treatment of absorption of aconite through the skin is similar to the treatment for poisoning caused by oral ingestion.

A Very Recent English Murder

:In January 2009, the British 'Curry Poison Killer' Lakhvir Singh, killed her lover Lakhvinder Cheema with a curry dish laced with Indian Aconite. On 11 February 2010 she was sentenced to life imprisonment with a minimum term of 23 years for the murder.

How Well DoYou Know Your History? We All Know That Queen Cleopatra Died From Poisoning......Don't We?

The Death of Cleopatra - Arthur
The Death of Cleopatra - Arthur | Source

But can we be more specific?

Take the Poll below first, and then see how many got it right by scrolling down to just below the "Emergency First Aid" paragraph, where you'll see the correct answer shown in the blue box.

How did Queen Cleopatra die?

See results

Emergency First Aid

Follow These Steps

Poisonous plants can cause serious illness if eaten. These include a few varieties of mushrooms, seeds, bulbs, rhizomes and berries.

Treatment of Ingestion of Poisonous Plants:

  • Check and clear the airway.
  • If the casualty is unconscious, check breathing and pulse, and be prepared to resuscitate if necessary. Place the casualty in the recovery position. The casualty may vomit.
  • DO NOT attempt to induce vomiting.
  • Assess the need to contact a medical practitioner or the emergency service. If in doubt, always contact the emergency service.
  • - Try to identify the plant, and which part of it has been ingested. Keep samples of the plant, and any vomited material, to show the medical practitioner, or to send to hospital with the casualty.

How did Cleopatra Die? This is the Answer to the Multiple Choice Question Above

She is reputed to have taken her own life by being bitten by an asp, to avoid capture by her enemies in 30 BC

Remember - The Sap from a Plant May be Poisonous

Treat it with respect!

If you can't avoid skin contact, just make sure you wash your hands and any part of your body which has been in contact with a possibly poisonous substance.

And don't put anything contaminated in your mouth.

Don't scratch or rub your eyes or face if your hands have been in contact with suspect substances.



A Popular YouTube Video About Plant Poisoning

Do Leave Comments About Poisonous Garden Plants: Iris, Azalea And Hydrangea - It's Good To Know What People Are Thinking

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    • profile image

      Lynn Klobuchar 

      4 years ago

      Interesting information.

    • profile image


      5 years ago

      From this list I can see that I will have to put a sign in my garden, "eat at your own risk"!

    • ecogranny profile image

      Kathryn Grace 

      5 years ago from San Francisco

      I did not know of the toxic quality of several of these plants, nor did I know that mere skin contact with the sap could cause toxic reactions, apart from more routine allergic reactions. Thank you for enlightening us.

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      5 years ago from United Kingdom

      @toshia lm: : Thank you for your message which will be dealt with as soon as possible.

      This is an automated reply.

    • toshia lm profile image

      toshia lm 

      5 years ago

      very informative thank you for sharing

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      5 years ago from United Kingdom

      @Raymond Eagar: : Thank you for your message which will be dealt with as soon as possible.

      This is an automated reply.

    • Raymond Eagar profile image

      Raymond Eagar 

      5 years ago

      Good to know

    • Gypzeerose profile image

      Rose Jones 

      5 years ago

      Important lens - and that intro photo is awesome.

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      5 years ago from United Kingdom

      @BLouw: No harm in admiring them - just don't eat them, or lick your fingers after touching them

    • BLouw profile image

      Barbara Walton 

      5 years ago from France

      I knew that monkshood was poisonous, but not the other two. I love morning glories and grow them in my garden. Will view them with renewed respect from now on.

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      5 years ago from United Kingdom

      @chi kung: Yes, they do tend to put everything they find in their mouths

    • chi kung profile image

      chi kung 

      5 years ago

      I would avoid planting these flowers if I had small children...

    • goldenrulecomics profile image


      5 years ago from New Jersey

      Very nicely done, and lots of good advice on avoiding being poisoned!

    • John Dyhouse profile image

      John Dyhouse 

      6 years ago from UK

      Excellent lens , lots of intersesting imformation, must admit that I did not realise that lupins were poisonous, but then I don't think I would be using the "beans". I do know of some poisonous garden plants which I have grown in the past and indeed still have in my garden.

    • BarbRad profile image

      Barbara Radisavljevic 

      6 years ago from Templeton, CA

      Isn't it interesting that many of our most prescribed medications come from poisonous plants? This is an important lens. And I love the photos.

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      6 years ago from United Kingdom

      @Winter52 LM: I feel the same way about hellebores, which gave me bad skin trouble for several weeks. The main thing is not to stay in contact for long, don't lick fingers, and wash as soon as possible after contact

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      6 years ago from United Kingdom

      @Joan Haines: Yes, me too, but I think seed producers would be worried that they might lose sales

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      6 years ago from United Kingdom

      @Keith J Winter: I must confess, it doesn't stop me growing the plants, which are so lovely, but I'm very careful with them

    • Keith J Winter profile image

      Keith Winter 

      6 years ago from Spain

      Great lens. I agree that more information should be put on the packaging of plants and seeds. I know that there are many poisonous plants, but I'm not which ones. Thanks for this useful information. I will take more care with choosing plants for my garden.

    • Joan Haines profile image

      Joan Haines 

      6 years ago

      This IS very important information. It should be put on the seed packets, I agree!

    • Winter52 LM profile image

      Winter52 LM 

      6 years ago

      I don't know if it was just a coincidence, but I picked some lily of the valley from the backyard of the "new" house and felt horrid for the entire afternoon. I stay away from them now, but thanks for the heads up on the others.

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      6 years ago from United Kingdom

      @favored: I never thought of that - yes, of course they should list that information

    • favored profile image

      Fay Favored 

      6 years ago from USA

      Well this info sure is a wake up call. I have morning glories all over my yard. The good news is, I don't put my fingers in my mouth :) Apppreciate this article. They should list this on the package.

    • profile image


      6 years ago

      Our neighbors whole back yard is swarming with morning glory. It keeps coming through the fence, wall, trees, plants. The home has been vacant for 6 months so it has taken over the place. I have kids and a dog that likes to eat plants. I have tried to remove some of it, but it makes me really itchy.

      Could that be the reason why I don't feel good when ripping them out by the handfuls? What should I do?

    • karMALZEKE profile image


      6 years ago

      I have to tell you I REALLY enjoyed this lens!! I just had no idea! Thank you.

    • mariaamoroso profile image


      6 years ago from Sweden

      I tought my kids what flowers and seeds not to touch or eat from. They are there and thanks for this lens.

    • KimGiancaterino profile image


      6 years ago

      Thanks for the heads up. We try to avoid poisonous plants in our garden.

    • profile image


      7 years ago

      Wow thanks I learned something today!

    • hsschulte profile image


      7 years ago

      I didn't know morning glory was poisonous. Thanks for the heads up.

    • jmjdnd profile image


      7 years ago

      I've tried Morning Glory before it's no joke. Hawaiian Baby Woodrose seeds are very similar to Morning Glory, they share the same effects. I learned my lesson great lens BTW.

    • hysongdesigns profile image


      7 years ago

      Very nice lens. Hadn't realized that about the morning glory seeds; since they are related to sweet potatoes and the leaves and stems of of those are also eaten in some countries I was recently wondering if the leaves and blossoms of morning glories were also edible.

    • profile image


      7 years ago

      enjoyed my visit on your lens, earned a 'thumbs up' from this reader.

    • profile image


      7 years ago

      I have a bunch of morning glories growing up and down my driveway and I love to take pictures of them early in the morning. I had no idea they were even remotely poisonous.

    • Diana Wenzel profile image

      Renaissance Woman 

      7 years ago from Colorado

      Wow... who knew... trippin' out on morning glories! I had no idea these plants were poisonous. Thanks for the education. Very interesting lens.

    • firstcookbooklady profile image

      Char Milbrett 

      7 years ago from Minnesota

      i didn't know all of this, either.. good lens

    • firstcookbooklady profile image

      Char Milbrett 

      7 years ago from Minnesota

      i didn't know all of this, either.. good lens

    • tvyps profile image

      Teri Villars 

      8 years ago from Phoenix, Arizona

      Cool lens! Interesting stuff!

    • BuckHawkcenter profile image


      8 years ago

      All of your lenses in this series are spectacular! And this one is no disappointment. Good information!

    • Gloriousconfusion profile imageAUTHOR

      Diana Grant 

      9 years ago from United Kingdom

      According to my research, Morning Glory is more of a hallucinogen, causing hallucinations and confusion. Neither seems to be fatal

    • PromptWriter profile image

      Moe Wood 

      9 years ago from Eastern Ontario

      I had no idea MG and Lupines were poisonous.


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