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Sea Mayweed

Tripleurospermum maritimum

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Plant Profile

Flowering Months:
Asteraceae (Daisy)
Also in this family:
Alpine Blue Sow-thistle, Alpine Cotula, Alpine Fleabane, Alpine Saw-wort, Annual Ragweed, Annual Sunflower, Argentine Fleabane, Autumn Hawkbit, Autumn Oxeye, Beaked Hawksbeard, Beggarticks, Bilbao Fleabane, Black Knapweed, Black-eyed Susan, Blanketflower, Blue Fleabane, Blue Globe-thistle, Bristly Oxtongue, Broad-leaved Cudweed, Broad-leaved Ragwort, Brown Knapweed, Butterbur, Buttonweed, Cabbage Thistle, Canadian Fleabane, Canadian Goldenrod, Carline Thistle, Chalk Knapweed, Chamois Ragwort, Changing Michaelmas Daisy, Chicory, Chinese Mugwort, Chinese Ragwort, Coltsfoot, Common Blue Sow-thistle, Common Cat's-ear, Common Cudweed, Common Daisy, Common Dandelion, Common Fleabane, Common Goldenrod, Common Groundsel, Common Michaelmas Daisy, Common Mugwort, Common Ragwort, Common Wormwood, Coneflower, Confused Michaelmas Daisy, Corn Chamomile, Corn Marigold, Cornflower, Cotton Thistle, Cottonweed, Creeping Thistle, Daisy Bush, Dwarf Cudweed, Dwarf Thistle, Early Goldenrod, Eastern Groundsel, Eastern Leopardsbane, Elecampane, English Hawkweed, Fen Ragwort, Feverfew, Field Fleawort, Field Wormwood, Fox and Cubs, French Tarragon, Gallant Soldier, Garden Lettuce, Giant Butterbur, Glabrous-headed Hawkweed, Glandular Globe-thistle, Glaucous Michaelmas Daisy, Globe Artichoke, Globe-thistle, Goat's Beard, Golden Ragwort, Golden Samphire, Goldilocks Aster, Grass-leaved Goldenrod, Great Lettuce, Greater Burdock, Greater Knapweed, Grey-headed Hawkweed, Guernsey Fleabane, Hairless Blue Sow-thistle, Hairless Leptinella, Hairy Michaelmas Daisy, Harpur Crewe's Leopardsbane, Hawkweed Oxtongue, Heath Cudweed, Heath Groundsel, Hemp Agrimony, Highland Cudweed, Hoary Mugwort, Hoary Ragwort, Hybrid Knapweed, Intermediate Burdock, Irish Fleabane, Jersey Cudweed, Jerusalem Artichoke, Lance-leaved Hawkweed, Lavender-cotton, Leafless Hawksbeard, Least Lettuce, Leopardplant, Leopardsbane, Leptinella, Lesser Burdock, Lesser Hawkbit, Lesser Sunflower, London Bur-marigold, Magellan Ragwort, Marsh Cudweed, Marsh Hawksbeard, Marsh Ragwort, Marsh Sow-thistle, Marsh Thistle, Meadow Thistle, Melancholy Thistle, Mexican Fleabane, Milk Thistle, Mountain Everlasting, Mouse-ear Hawkweed, Musk Thistle, Narrow-leaved Cudweed, Narrow-leaved Hawkweed, Narrow-leaved Michaelmas Daisy, Narrow-leaved Ragwort, New England Hawkweed, New Zealand Holly, Nipplewort, Nodding Bur-marigold, Northern Hawksbeard, Norwegian Mugwort, Oxeye Daisy, Oxford Ragwort, Pearly Everlasting, Perennial Cornflower, Perennial Ragweed, Perennial Sow-thistle, Perennial Sunflower, Pineapple Mayweed, Plantain-leaved Leopardsbane, Ploughman's Spikenard, Plymouth Thistle, Pontic Blue Sow-thistle, Pot Marigold, Prickly Lettuce, Prickly Sow-thistle, Purple Coltsfoot, Rayed Tansy, Red Star Thistle, Red-seeded Dandelion, Red-tipped Cudweed, Robin's Plantain, Roman Chamomile, Rough Cocklebur, Rough Hawkbit, Rough Hawksbeard, Russian Lettuce, Safflower, Salsify, Saw-wort, Scented Mayweed, Scentless Mayweed, Sea Aster, Sea Wormwood, Seaside Daisy, Shaggy Mouse-ear Hawkweed, Shaggy Soldier, Shasta Daisy, Shetland Mouse-ear Hawkweed, Shrub Ragwort, Sicilian Chamomile, Silver Ragwort, Slender Mugwort, Slender Thistle, Small Cudweed, Small Fleabane, Smooth Cat's-ear, Smooth Hawksbeard, Smooth Sow-thistle, Sneezeweed, Sneezewort, Spear Thistle, Spotted Cat's-ear, Spotted Hawkweed, Sticky Groundsel, Stinking Chamomile, Stinking Hawksbeard, Tall Fleabane, Tall Mouse-ear Hawkweed, Tansy, Thin-leaved Sunflower, Trifid Bur-marigold, Tuberous Thistle, Tyneside Leopardplant, Viper's Grass, Wall Lettuce, Welsh Groundsel, Welted Thistle, White Butterbur, White Buttons, Willdenow's Leopardsbane, Winter Heliotrope, Wood Burdock, Wood Ragwort, Woody Fleabane, Woolly Thistle, Yarrow, Yellow Chamomile, Yellow Fox and Cubs, Yellow Oxeye, Yellow Star Thistle, Yellow Thistle, York Groundsel
Life Cycle:
Annual or Biennial
Maximum Size:
50 centimetres tall
Beaches, cliffs, ditches, fields, mudflats, roadsides, rocky places, saltmarshes, sand dunes, sea cliffs, seaside, towns, walls, wasteland.

White, many petals
Large daisy-like flowers with greenish-white sepal-like bracts. Very similar looking to Scentless Mayweed. Bracts are also brown-edged.
A flat, ridged, light brown achene (seed).
Alternate, feathery leaves. The leaflets are thread-like. Basal leaves are stalkless and stem leaves, almost stalkless.
The crushed leaves are faintly aromatic, smelling similar to chamomile but much weaker.
Other Names:
Baldr's Eyelashes, Dog Gowan, False Mayweed, Mayweed, Scentless False Chamomile, Scentless Matricary, Scentless Mayweed, Sea Chamomile.
Frequency (UK):
Occasionally seen  

Other Information


Tripleurospermum maritimum, also known as Sea Mayweed or Sea Chamomile, is a perennial plant that is native to Europe and Asia. It is known for its small, white, daisy-like flowers that have a strong scent of chamomile. The plant prefers full sun and well-drained soil, and can grow up to 30-60 cm tall. It is often found growing in sandy or coastal habitats, such as beaches and dunes. Sea Mayweed is also known for its medicinal properties, and has been traditionally used to treat a wide range of health conditions, including digestive issues, skin conditions, and respiratory problems. However, it's not recommended to use it without proper knowledge as it can also be toxic if ingested in high quantity.


Sea mayweed (Tripleurospermum maritimum) is a flowering plant that belongs to the daisy family (Asteraceae). It is a coastal plant that is commonly found in the temperate regions of Europe, North Africa, and western Asia. Sea mayweed is known for its medicinal properties and has been used for centuries as a natural remedy for a variety of ailments.

Sea mayweed is a small herbaceous plant that grows up to 50 cm in height. Its stem is slender and erect, with branches at the top. The leaves are thin and fern-like, with small lobes on either side. The flowers are small and daisy-like, with white petals surrounding a yellow center. Sea mayweed blooms from July to September.

Sea mayweed has been used for centuries as a natural remedy for a variety of ailments. It is known for its anti-inflammatory, anti-spasmodic, and anti-allergenic properties. The plant contains several compounds that have been shown to have medicinal properties, including flavonoids, sesquiterpene lactones, and essential oils.

One of the primary medicinal uses of sea mayweed is as an anti-inflammatory. The plant has been shown to reduce inflammation in the body, which can help to relieve pain and swelling. Sea mayweed is also used as a natural remedy for digestive issues, including bloating, gas, and indigestion. The plant is believed to have a calming effect on the digestive system, helping to reduce spasms and promote healthy digestion.

Sea mayweed is also known for its anti-allergenic properties. The plant contains several compounds that have been shown to reduce the body's allergic response. This can be particularly helpful for individuals who suffer from seasonal allergies or other allergic reactions.

In addition to its medicinal properties, sea mayweed is also used as a culinary herb. The plant has a slightly bitter taste and is often used to flavor soups and stews. The essential oil extracted from the plant is also used in perfumes and cosmetics.

Sea mayweed is a versatile plant that has been used for centuries for its medicinal and culinary properties. While more research is needed to fully understand the plant's benefits, it is a natural remedy that is worth considering for individuals looking for a natural way to relieve pain, reduce inflammation, and promote healthy digestion.

Sea mayweed is also known by several other common names, including false chamomile, sea chamomile, and wild chamomile. It is often confused with chamomile (Matricaria chamomilla), another flowering plant that is also used for its medicinal properties. However, the two plants are different species and have distinct characteristics.

Sea mayweed is a hardy plant that is well-suited for coastal environments. It is often found growing in sand dunes, salt marshes, and along the coast. The plant is tolerant of salty soils and can grow in areas where other plants may struggle to survive. Sea mayweed is also a popular plant for landscaping and is often used in seaside gardens and other coastal settings.

Sea mayweed is easy to grow and can be propagated through seeds or cuttings. The plant prefers well-drained soils and full sun but can tolerate some shade. It is a low-maintenance plant that does not require frequent watering or fertilization.

In addition to its medicinal and culinary uses, sea mayweed has also been used in traditional medicine as a natural insect repellent. The plant contains several compounds that are known to repel insects, including mosquitoes and flies. The essential oil extracted from the plant can be used as a natural alternative to synthetic insect repellents.

Sea mayweed has been used in traditional medicine for a variety of conditions, including anxiety, insomnia, and menstrual cramps. The plant is believed to have a calming effect on the nervous system and can help to promote relaxation and reduce stress.

Sea mayweed is also used in skincare products due to its anti-inflammatory and antioxidant properties. The plant's essential oil is commonly used in natural skincare products to soothe and moisturize the skin, reduce redness and inflammation, and protect against environmental damage.

In addition to its medicinal and skincare uses, sea mayweed is also used in the production of natural dyes. The plant contains several compounds that can be used to create yellow and green dyes, which have been used for centuries in textile production.

One of the most interesting aspects of sea mayweed is its role in coastal ecosystems. The plant plays an important role in stabilizing sand dunes and preventing erosion along the coast. Its roots help to anchor the soil and prevent sand from blowing away, while its leaves help to trap sand and build up dune structures over time. Sea mayweed is also an important source of food and shelter for a variety of coastal animals, including birds and insects.

Sea mayweed is a versatile and valuable plant that has been used for centuries for its medicinal, culinary, and ecological properties. Its many uses and benefits make it a plant worth exploring for individuals interested in natural remedies, skincare, and sustainable agriculture.

Sea mayweed is also an important plant in traditional medicine practices in North Africa, where it is known as "Mamounia". It is often used as a natural remedy for digestive disorders, such as stomach cramps, bloating, and diarrhea. In addition, the plant is believed to have diuretic properties and may be used to treat urinary tract infections and kidney stones.

The essential oil extracted from sea mayweed is also used in aromatherapy for its calming and relaxing properties. It is believed to have a soothing effect on the mind and body and can help to promote a sense of relaxation and well-being.

Sea mayweed is also used in traditional folklore for its spiritual and mystical properties. In ancient times, the plant was associated with the goddess of love and beauty, Aphrodite, and was believed to have magical properties that could enhance one's beauty and attractiveness.

The plant's flowers were also used in traditional wedding ceremonies as a symbol of love and fidelity. It was believed that the bride's bouquet of sea mayweed flowers would bring good luck and happiness to the newlyweds.

In conclusion, sea mayweed is a versatile plant with a rich history and many uses. Its medicinal, culinary, ecological, and spiritual properties make it a valuable plant that is worth exploring for individuals interested in natural remedies, skincare, aromatherapy, and traditional folklore.


Sea Mayweed filmed at Arnside, Cumbria on the 22nd October 2022.


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