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Sylvia Rose

Pretty Poisons: Holly, Yew, Mistletoe

Updated: Dec 14, 2024

Holly, yew and mistletoe, the most cheerful and celebrated of seasonal plants, are also the most poisonous. These three toxic beauties can cause health disruptions from indigestion to nervous collapse and death.


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In the Northern Hemisphere the Winter Solstice falls on December 21, the longest night of the year, and heralds the return of light after a long cold winter. Solstice is a time of revelry, feasting, celebrations including Yule and Saturnalia, and gifts of light, such as candles.



candles are symbols of hope & returning light at solstice
Yew Branches with Candles - Solstice & the Return of Light

Ancient rituals of the solstice also include music and dancing, masks and elaborate costumes often representing nature deities, and bonfires. Bonfires represent the sun warming the earth, and the light caused the sinister demons of darkness to retreat.


Bright colors abound. Red and green are popular colors of the season and both stimulate the warrior spirit. Green corresponds to the feminine principle, wisdom, nature, wood, nurturing, growth and creativity.



panacea greek goddess
Panacea, daughter of physician god Aesclapius

Red is the masculine principle, fire, relating to passion, positive action, protection. White, the color of mistletoe berries, is symbolic of light, virility and vitality. Symbols of life and rebirth, they all are toxic, causing symptoms from nausea to death.


1. Holly - Fertility, Magic, Eternal Life



Green and red are colors of the Yule season rooted in evergreen holly. This plant is abundant in the pagan Roman celebration Saturnalia (Dec 17 - 23). In ancient Rome Dec 25th is the Day of the Unconquered Sun, a few days after Solstice, when effects of light are noticeable.


When the Romans invent Christmas in the 4th century AD, holly remains part of the festive season. European holly (Ilex aquifolium) is the plant most commonly used in wreaths and decorations.



Holly leaves and toxic berries
Holly Leaves and Berries

The wreath attunes the energy of the circle. In spiritual meaning circles relate to wholeness or completion, infinity, symmetry, perfection and inner strength. The circle is a vessel for magic energies. Spells are often cast in a circle. Circle relates to the Sun and full Moon.


Early solstice celebrations mark the end of long cold winter nights, and the new feeling of hope and optimism as days lengthen, sap flows and trees bud and both plants and animals have thoughts of love.


With its cheerful bright red berries and shiny green leaves, evergreen holly doesn't wither in winter like other plants. The traditional holly retains its leaves and is a vibrant symbol of strength and perseverance. Along with Rowan and Elder, Holly is a favored wood for runes.



Holly red berries and green leaves
Bright colors for the season - green holly with red berries

Holly berries are toxic to humans and other animals. Some birds, like the cardinals and robins, find them tasty and satisfying. Despite their small size, birds have a higher threshold of toxin resistance than humans.


The poison is created by the toxin saponin, which infuses the berries but often ignores the leaves. Consuming holly berries can cause:


  • vomiting

  • diarrhea

  • dehydration

  • drowsiness


Eating over 20 berries can be fatal to a child. Even a few berries can cause illness. Keep them out of reach of children and pets. Much like mushrooms, some species of holly leaves are safe to eat. Others cause mild to serious illness.



Cardinals enjoy berries
Cardinals love berries

2. Yew - Life, Death, Rebirth



Themes of life, death and rebirth rule the seasons. The land goes into a death state over winter. It's also the time restless Undead and evil spirits roam.


The Yew (Taxus baccata) is a significant symbol of the Solstice. It celebrates return of life to the Earth, hope and optimism.


Green needles and red berries make this plant another holiday favorite. An evergreen, the yew tree can live for centuries, making it a tree of longevity and life everlasting.



Yew plant with red berries, poisonous
Deadly Yew is an evergreen shrub or tree

Yew is toxic throughout, except the red flesh or berry parts surrounding the seed. Berries are eaten by birds and the seeds inside then pass into the droppings of the bird to propagate the tree species.


Yew is known as the privy tree. It was planted near outdoor toilets or outhouses because the scent of the plant keeps insects away. One of the most common forms of plant poisoning, yew is highly toxic to people, cats, dogs, horses, livestock and wild animals.



the outhouse

According the Julius Caesar, during the Gallic Wars (58 - 50 BC), Cativolcus, chief of the Eburones, poisons himself with yew rather than submit to Rome. Similarly, yew is historically used in mass suicides by besieged or defeated people.


Yew wood is considered ideal for longbows because of its hardness and flexibility. Yew is the hardest of the softwoods. Yew wood is preferred for making lutes and other musical instruments because of its resonant qualities.



celebration with lute in foreground
Melody, 1895, Kate Elizabeth Bunce (1856-1927) - playing a lute

A resilient tree, yew grows even in poor soil. It can handle massive pruning. Nonetheless it's a slow-growing plant and because of the popularity of yew wood, was harvested almost to extinction. In the mid 20th century yew was found to have cancer-fighting compounds.


Yew berries, needles and bark contain taxine alkaloids which cause the toxic effects. Symptoms of yew poisoning include:


  • trembling and nervous tremors

  • dyspnoea (subjective awareness of difficulty breathing)

  • cyanosis (blue color in skin, lips, nail beds caused by oxygen deficiency in the blood)

  • nausea

  • vomiting

  • diarrhea

  • neurological disturbance, loss of muscle control

  • cardiovascular collapse

  • death


The lethal dose for an adult is about 50g (1.7 oz) of yew needles. Once the toxin is ingested, resuscitation is virtually impossible.


3. Mistletoe - Romance, Fertility, Vitality



Mistletoe (Viscum album) is a parasitic plant with a long history of use in medicine and magic. The early Druids were fond of herbal properties of mistletoe, and the mystic plant with white berries and green foliage became a symbol of love for the Solstice season.



Mistletoe is for kissing under but don't eat it!
White Mistletoe Berries and Green Leaves of Wild Mistletoe

An evergreen, mistletoe grows on trees such as oak and aspen. It can be seen in winter, fresh and green among the bare branches.


Mistletoe inserts roots into the host tree and feeds from the nutrients. In the Asterix and Obelix series, the village Druid is often found up in oak trees gathering mistletoe.


Mistletoe is strongly associated with male fertility as the white seeds represent semen. In Celtic myth mistletoe relates to Taranis, God of Thunder.



coming storm
Storm brewing

For the Romans, mistletoe represents peace, love and compassion. They hang it over doorways to protect the household. The ancient Greeks call the plant oak sperm.


Kissing under the mistletoe comes into practice in the later 18th century, popular among servants. In Norse mythology the tradition goes back to Frigg who decrees mistletoe will deliver a 'kiss' and nevermore be used in weaponry, after it kills her shining son Baldr.



two people in silhouette kiss in front of the sun
Solstice kiss

In Victorian England, a man is allowed to kiss any woman who stands beneath a mistletoe, and bad luck befalls her if she refuses. This is a significant departure from the social prohibition of public displays of romance in Victorian society.


An extension of the tradition is to eat a berry with every kiss, and the kissing stops when the berries are gone. This causes numerous cases of mistletoe poisoning.


Among the 1500 species of mistletoe, all are toxic to some degree. European mistletoe, active substance tyramine, is considered more toxic than American mistletoe (Phoradendron serotinum), active substance phoratoxin.



mistletoe

Toxins are active in leaves and berries of the plant. Adults experience less intense effects but the toxins can be fatal to children or animals. Symptoms of mistletoe poisoning include:


  • blurred vision

  • diarrhea

  • nausea

  • vomiting


Severe toxic effects include:


  • delirium

  • hallucinations

  • seizures

  • hypertension

  • cardiac arrest


There's no actual cure for mistletoe poisoning. Symptoms are treated in hospital.


On the other end of the health spectrum, mistletoe is considered to have medicinal properties. In folk and modern medicine its compounds are used to treat arthritis, headache, high blood pressure, symptoms of menopause, epilepsy and infertility.



medicines


Non-Fiction Books:


Fiction Books:

READ: Lora Ley Adventures - Germanic Mythology Fiction Series

READ: Reiker For Hire - Victorian Detective Murder Mysteries






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