Crinum asiaticum, Grand Crinum Lily, Spider Lily, Seashore Lily

Crinum asiaticum, commonly known as poison bulb, giant crinum lily or spider lily, is a plant species widely planted in many warmer regions as an ornamental plant. It is a tender perennial bulb in the Liliaceae (Lily family). The plant is native to Indian Ocean islands, East Asia, tropical Asia, Australia, and Pacific islands. It is regarded as naturalized in Mexico, the West Indies, Florida, Louisiana, numerous Pacific islands, Madagascar, and the Chagos Archipelago. The plant is known as Grand Crinum Lily, Poison Bulb, Spider Lily, Seashore Lily, Bakung, Crinum Lily, Asiatic Poison Lily, Seashore Crinum, Bawang Hutan, Giant Crinum, White Crinum, Grand Crinum, Giant Crinum, Nagdaman, Sukhdarshan, and Sudarshan in English, naagadamani in Ayurveda, bakong in Malaysia, and morabau in Papua New Guinea.

 

Genus name Crinum originates from the Greek word krinon which means white lily, referring to the white or whitish flowers that most species produce. Specific epithet asiaticum is in reference to the plant being native to Asia. The plant is harvested from the wild for local medicinal use. It is commonly cultivated as an ornamental plant in tropical areas, being valued especially for its showy flowers. It is a bulb-forming perennial producing an umbel of large, showy flowers that are prized by gardeners. All parts of the plant are however poisonous if ingested. Some reports specify exposure to the sap may cause skin irritation.

Poison Lily Facts

Plant Description

Poison lily or poison bulb is an erect, herbaceous, terrestrial, perennial, ornamental, bulbous plant with a flowering stalk in the center of the plant. The plant normally grows about 5 feet (1.5 m) tall and a greater spread of about 7 feet (2 m) from an underground bulb that can be 5 – 15cm in diameter. The plant is found growing in sandy beaches, other coastal areas, cliff and steep slopes, borders of coastal forests, mangrove forests, and at low altitudes. The plant prefers a deep, well-drained but moisture-retentive fertile soil that is rich in organic matter. The plant has a fibrous, adventitious root system and contracted rounded and solid stem.

Leaves

Stalk fewer leaves are simple, narrowly lanceolate, acuminate, in a dense rosette atop the stem, the blade is sessile, linear-lanceolate, usually 60-130 cm long and 10-15 cm wide, thick and somewhat fleshy, stalkless parallel-veined with many cross veins and is light green colored. Leaves have a hairy texture.

Foliage Retention	Evergreen
Mature Foliage Color(s)	Green – Light Green
Mature Foliage Texture(s)	Smooth
Foliar Type	Simple / Unifoliate
Foliar Arrangement Along Stem	Rosulate / Rosette
Foliar Attachment to Stem	Sessile
Foliar Shape(s)	Non-Palm Foliage (Lanceolate)
Foliar Venation	Parallel
Foliar Margin	Entire, Entire – Wavy / Undulate
Foliar Apex- Tip	Acute
Foliar Base	Truncate / Square
Leaf Area Index (LAI) for Green Plot Ratio	3.5 (Shrub & Groundcover – Monocot)

 

Flower

The inflorescence is umbel that has 10-24 flowers, multiple petals and aromatic. Flower stem is erect, as long as the leaf, solid. Spathe is lanceolate, membranous, 6–10 cm. Bractlet is liner, 3–7 cm. Perianth tube slender and straight, green white, 7–10 cm, diameter 1.5–2 mm. Corolla is spider-like shaped, white, linear, revolute, attenuate, 4.5–9 cm long and 6–9 mm wide. Corolla lobes 6. Pedicel is 0.5-2.5 cm long. Stamens are reddish colored. Filaments are 4–5 cm long. Anthers are liner, attenuate, ca. 1.5 cm long or more. Ovary is fusiform, up to 2 cm long. Flowering normally takes place in between June to August. Flowers are fragrant at night.

Flower & Plant Sexuality	Bisexual Flowers
Flower Color(s)	White
Flower Grouping	Cluster / Inflorescence
Flower Location	Terminal
Flower Symmetry	Radial
Individual Flower Shape	Tubular
Flower Size – Width	20 cm
Inflorescence Type	Umbel

 

Fruit

Fertile flowers are followed by oblate irregularly globose capsule, 2.5-6.5 cm across, with one or a few large green seeds. Seeds are 2-4.5 cm wide, large, and exotesta spongy.

Mature Fruit Color(s) – Angiosperms and Gymnosperms	Green – Light Green
Mature Fruit Texture(s)	Glossy / Shiny
Fruit Classification	Simple Fruit
Fruit Type	Fleshy Fruit

 

Traditional uses and benefits of Poison lily

• Leaves are boiled and used as a bath, or the juice is applied as a thick liquid to treat edema.
• Leaves are wilted over hot charcoal and wrapped around the knees for swollen knees, or placed on the back for about one hour for backaches.
• Leaf and bulbs are used to neutralize poisons and regulate flatulence, phlegm, and urine.
• The bulb is ground to make a paste for reducing the heat from swellings or for weeping sores (this paste, however, causes some itching).
• The bulb consists of alkaloids, notably lycorine and crinamine.
• A poultice made from the heated pounded, the fresh bulb is used to relieve osteodynia and rheumatism.
• Juice of the fresh bulb is used as an emetic, whilst it is also instilled in the ear to treat Otis.
• A poultice of the heated, pounded, fresh leaves are used to treat contusions, sprains, closed fractures, luxation, etc.
• Decoction of the dried leaves is used as a wash in the treatment of hemorrhoids.
• Leaves are applied on swellings and the roots are given to ease childbirth in Papua New Guinea.
• The hair-like threads from the stem are used to poultice cuts.
• The plant is used to treat infections of the breast and wounds in Fiji.
• The crushed leaves are used to wash piles.
• Mixed with honey, they are applied to wounds and abscesses.
• Leaves and bulbs can be used to induce vomiting because they consist of the alkaloid lycorine.
• In ethnomedicine, it is used to relieve anguish from a plethora of ailment conditions such as boils, contusions, earache, edema, fever, fractures, gastrointestinal complaints, hernia, mumps, rheumatism, tonsillitis, urinary difficulties, and vomiting, amongst others.
• The plant or plant part is used for gastrointestinal disorders, skin diseases, fever, earache, boils, tonsillitis, mumps, hernia, rheumatism, urinary troubles, bone fracture, edema, and also as an antidote to poison.
• Folk herbalists of the Tipuri tribe in Tripura use the bulbs of the plant to treat tonsillitis.
• The Gonds of Andhra Pradesh consume the roasted bulbs to kill worms in the stomach and also as an aphrodisiac.
• In Varanasi, Uttar Pradesh the bulbs are roasted and eaten to cure rheumatism and piles.
• It has been used in Thai traditional medicine to relieve inflammatory symptoms and treat osteoarthritis.
• Leaf is used to treat injurious, inflamed joints, and ankle pain and for postpartum care in Thai traditional medicine.
• It has a considerable medicinal reputation as a potent folk medicine in the treatment of injury and inflamed joints in Southeast Asian countries.
• The plant has been used for carbuncles and cancer.
• Oiled and heated leaves are useful to treat wounds by poisoned arrows, bites, and stings in Indonesia.
• Poultices of the leaves are applied to swellings, swollen joints, lumbago, and pains and in cases of headache and fever in Malaysia.
• The latex from the leaves is applied to cuts in Karkar Island and in Simbu, Papua New Guinea.
• In the Trobriands, Papua New Guinea, the stem fibers are used to stop bleeding and in New Ireland, the milky sap from the stem is used for stone-fish wounds.
• Juice obtained from bulbs is ingested regularly for 2 months to treat gonorrhea in Papua New Guinea.
• The cut root is cooked in a banana leaf, then cooled and placed on an aching tooth in a Finschhafen area village, Papua New Guinea.
• Roots are used in New Caledonia, Indonesia, and Malaysia in a poultice for wounds, ulcers, and swellings.
• Preparation of the root is given to aid childbirth and postpartum hemorrhage.
• Leaves are heated and applied to backaches in Micronesia.
• Leaves are also used for permanent retraction of the testes.
• In Dinajpur district, Bangladesh, leaf juice and fruit are orally taken on an empty stomach thrice daily for 14 days as treatment for acidity and dysentery.
• The local people of Haryana, India use the bulb of the plant as a laxative for urinary troubles.
• Leaves are squeezed in water and the resulting solution is taken for indigestion in Vanuatu.

• The plant is used for ear, nose and throat diseases in North Gujarat, India.
• The folk medicinal practitioners of villages in Bangladesh use tubers of the plant along with roots of Ocimum sanctum and black peppers to treat menstrual pain.
• Folk medicinal practitioners of Rajshahi district, Bangladesh use the plant to treat chest diseases and vomiting tendency, where crushed roots of the plant are mixed with ginger and fruits of Piper nigrum and massaged on the chest.
• A folk medicinal practitioner in Bangladesh supposedly uses roots of the plant to treat coughs, mucus and fever.
• The Chakma community of Bangladesh uses stems of the plant to treat jaundice.
• Juice is extracted from fresh bulbs and following sun drying is rubbed with soft cotton on areas of tonsillitis.
• The Tripura tribe of Bangladesh uses leaf juice mixed with oil obtained from seeds of Ricinus communis to treat the swelling of fingers or toes.
• The plant is used by folk medicinal practitioners to treat hernias in Bangladesh.
• The Temuan villagers in Malaysia topically apply heated leaves to the bone fractured areas.

Precautions

• The entire plant of poison bulb is toxic, especially the bulb.
• The sap can cause skin irritation.
• The whole plant consists of a variety of alkaloids such as lycorine and Hazeltine.
• When eaten by mistake, it can cause vomiting, abdominal pain, severe diarrhea after constipation, irregular breathing, rapid pulse, rising body temperature, etc.; a great deal of misuse can cause nervous system paralysis and death

 

References

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