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The Giant Hogweed is a highly invasive wildflower that can cause rashes and blisters and can cause blindness.  It often can grow in excess of seven feet tall.
Angelica Archangelica officinalis , umbelliferae, flower bumblebees and flies feeds nectar, moist meadow, drug plant, phytotherapy - angel Archangel Michael pointed to medicinal properties of plant
Umbelliferous plant Heracleum hogweed grows and blooms. High quality photo
wild carot (Daucus carota)
Beautiful flowers along the Seattle waterfront.
Harmful plant cow parsnip. The flower of cow parsnip. Large white inflorescences of cow parsnip close-up. Large flowers of cow parsnip at close range.
The giant hogweed is in full bloom. Touching this weed can cause burns to humans and animals. Municipalities often quickly remove this invasive exotic species.
Flowering cow parsley in the meadow
White angelica flower in summer meadow
Cow parsnip at Milgara Ridge  Golden Gate National Recreation Area  on a foggy spring day.
White flowers of Angelica archangelica in a field.
white Queen Anne's lace flower against green background
Closeup of a white flowering cow parsley or Anthriscus sylvestris plant growing in the wild nature in the Netherlands. It is summertime now.
Ants crawl on the inflorescences Garden Angelica in the spring.
white wldflower in the meadow
Insects on the flower of a wild carrot, Daucus carota which is a common plant in Denmark and often seen on roadsides and shoulders
Borshchevik Sosnovsky (lat. Heracléum sosnówskyi) is a large herbaceous plant, a species of the genus Hogweed (Heracleum) of the family Umbelliferae
Cow parsley / white flower growing on grass field during summer
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giant hogweed dangerous plant England summer
simple  isolated cow  parsley  with  green field
Giant Hogweed growing along the bank of a river.  No friend to gardeners and conservationists , it is much loved by beekeepers.
Wild carrot plant blooming in the summer
The flower head of a Giant Hogweed plant (Heracleum mantegazzianum), the sap from which can cause serious skin burns when exposed to sunlight.
American Cow parsnip (Heracleum maximum)  is also known as  Satan celery, Indian celery, Indian rhubarb or pushki. Native to North America.
Fool's parsley in a wildflower meadow.
Hemlock. Herbaceous strong-smelling poisonous plant. Inflorescence of white flowers on a blurred background.
Untouched nature. When a small piece of cultivated land is left alone for a year during the summer, a remarkable transformation takes place. wildflowers begins to emerge, painting the landscape with vibrant hues. Native plants reclaim their territory and bring biodiversity back to the area. Buried seeds from seasons past awaken, shooting up.
detail of carrot flower in a meadow near my house
Medium to tall, rather bristly biennial; stem erect, purple or purple spotted. Leaves 2-3 pinnate, dark green, but eventually turning purple; leaflets oval, toothed. Flowers white, 2mm, in compound umbels which are nodding in bud, the petals hairless; bracts usually absent, bracteoles hairy.  Fruit oblong, tapered towards the apex, 4-7mm, often purple.\nHabitat: Rough grassland, semi shaded places, on well drained soils, generally in low attitudes.\nFlowering Season: May-July.\nDistribution: Throughout Europe; absent from the Faeroes, Iceland, Norway, Finland and Spitsbergen.\n\nThis is a common Species in the Netherlands for the described Habitats.\nToxicity:\nChaerophyllum temulum contains (mainly in the upper parts and fruits) a volatile alkaloid chaerophylline, as well as other (probably glycosidally bound) toxins, the chemistry and pharmacology of which has, as yet, been but little studied. Externally, the sap of the plant can cause inflammation of the skin and persistent rashes. If consumed, the plant causes gastro-intestinal inflammation, drowsiness, vertigo and cardiac weakness. Human poisonings have seldom been observed, because the plant lacks aromatic essential oils that could lead to its being confused with edible umbellifers used to flavour food. It is, however, used occasionally in folk medicine. Animal poisonings by the plant are commoner than those of humans, pigs and cattle thus intoxicated exhibiting a staggering gait, unsteady stance, apathy and severe, exhausting colic, ending sometimes in death. \nHerbal medicine:\nChaerophyllum temulum has been used in folk medicine, in small doses, to treat arthritis, dropsy, and chronic skin complaints, and as a spring tonic. The early modern physician Boerhaave (1668–1738) once successfully used a decoction of the herb combined with Sarsaparilla to treat a woman suffering from leprosy – in the course of which treatment temporary blindness was a severe side effect following each dose (source Wikipedia).
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