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Lactuca virosa. Lactuca virosa is a plant in the Lactuca (lettuce) genus, ingested often for its mild psychotropic (specifically hypnotic or sedative) effects which are often described as being similar to that of opium.[1] It is related to common lettuce (L. sativa), and is often called Wild Lettuce, Bitter lettuce, Laitue vireuse, Opium Lettuce, Poisonous Lettuce, Tall Lettuce or Rakutu-Karyumu-So. It can be found locally in the south east and east of England. In the rest of Great Britain it is very rare, and in Ireland it is absent.

It is also found in the Punjab Region of Pakistan India and Australia where it grows in the wild. Tagetes lucida. Tagetes lucida - MHNT Tagetes lucida Cav. is a perennial plant native to Mexico and Central America. It is used as a medicinal plant and as a culinary herb. The leaves have a tarragon-like flavor, with hints of anise, and it has entered the nursery trade in North America as a tarragon substitute. Common names include yerbaniz, Mexican marigold, pericón, Mexican mint marigold, Mexican tarragon, Spanish tarragon, Cempaxóchitl and Texas tarragon. Description[edit] Tagetes lucida Cav. grows 18-30 in (46–76 cm) tall. Uses[edit] Fresh or dried leaves are used as a tarragon substitute for flavoring soups, sauces etc. A pleasant anise-flavored tea is brewed using the dried leaves and flowering tops. A yellow dye can be obtained from the flowers.

The dried plant is burnt as an incense and to repel insects.[3] In one study, methanolic extract from the flower inhibited growth of Staphylococcus aureus, E. coli, and Candida albicans cultures. Phytochemistry[edit] The plant contains the following compounds: Artemisia vulgaris. It is a tall herbaceous perennial plant growing 1–2 m (rarely 2.5 m) tall, with a woody root.

Artemisia vulgaris

The leaves are 5–20 cm long, dark green, pinnate, with dense white tomentose hairs on the underside. The erect stem often has a red-purplish tinge. The rather small flowers (5 mm long) are radially symmetrical with many yellow or dark red petals. The narrow and numerous capitula (flower heads) spread out in racemose panicles. It flowers from July to September. A number of species of Lepidoptera (butterflies and moths) feed on the leaves and flowers; see List of Lepidoptera that feed on Artemisia for details. Artemisia absinthium. Description[edit] It grows naturally on uncultivated, arid ground, on rocky slopes, and at the edge of footpaths and fields.

Toxicity[edit] Artemisia absinthium contains thujone, a psychoactive chemical that can cause epileptic-like convulsions and kidney failure when ingested in large amounts.[4] Cultivation[edit] Artemisia absinthium. This plant,[6] and its cultivars 'Lambrook Mist'[6] and 'Lambrook Silver'[7] have gained the Royal Horticultural Society's Award of Garden Merit.

The-absinthe-drinker-viktor-oliva-1861-1928.jpg (JPEG Image, 636x480 pixels) Tansy. Illustration of a tansy Tansy (Tanacetum vulgare) is a perennial, herbaceous flowering plant of the aster family, native to temperate Europe and Asia. It has been introduced to other parts of the world and in some areas has become invasive. Calea zacatechichi. It is used in traditional medicine and ritual in its native range.[3] Uses[edit] In Mexico the plant is used as an herbal remedy for dysentery and fever.[3] The Zoque Popoluca people call the plant tam huñi ("bitter gum") and use it to treat diarrhea and asthma, and the Mixe people know it as poop taam ujts ("white bitter herb") and use it for stomachache and fever.[4] The Chontal people of Oaxaca reportedly use the plant, known locally as thle-pela-kano, during divination.

Calea zacatechichi

Isolated reports describe rituals that involve smoking a plant believed to be this species, drinking it as a tea, and placing it under a pillow to induce divinatory dreams. Zacatechichi, the former species name, is a Nahuatl word meaning "bitter grass".[5] Users take the plant to help them remember their dreams; side effects include hallucinations, nausea, and vomiting.[2] Chemical composition[edit] Cultivated specimen.