Algunos tréboles, Achilleas, ruda atraen a insectos parasíticos y predadores. Various clovers, yarrow, and rue also attract parasitic and predatory insects. Word index: 1-300, 301-600, 601-900 Expression index: 1-400, 401-800, 801-1200 Phrase index: 1-400, 401-800, 801-1200
Ruta graveolens, commonly known as rue, common rue or herb-of-grace, is a species of Ruta grown as an ornamental plant and herb. It is native to the Balkan Peninsula. It is now grown throughout the world in gardens, especially for its bluish leaves, and sometimes for its tolerance of hot and dry soil conditions. It is also cultivated as a medicinal herb (famous in Ethiopia and Eritrea, where its local name is ጤና አዳም: "Tena adam"/Health for Adam), as a culinary herb, and to a lesser extent as an insect repellent and incense.
R. graveolens L. The specific epithet graveolens refers to the strong-smelling leaves.[1] This article is missing information about effectiveness and safety of traditional medical uses. (October 2021) In the ancient Roman world, the naturalists Pedanius Dioscorides and Pliny the Elder recommended that rue be combined with the poisonous shrub oleander to be drunk as an antidote to venomous snake bites.[2][3] The Tacuinum Sanitatis, a medieval handbook on wellness, lists these properties of rue:
The refined oil of rue is an emmenagogue[4] and was cited by the Roman historian Pliny the Elder and the gynecologist Soranus as a potent abortifacient (inducing abortion).[5][6] A "crown of rue" or crancelin on the heraldic banner of Saxony Culinary useFoliage Capsule and seed - MHNT Ruta "Tena Adam" in coffee in Ethiopia Rue has a culinary use, but since it is bitter and gastric discomfort may be experienced by some individuals, it is used sparingly. Although used more extensively in former times, it is not a herb that is typically found in modern cuisine. Today it is largely unknown to the general public and most chefs, and unavailable in grocery stores in most countries.[7] It is a component of berbere, the characteristic Ethiopian-Eritrean spice mixture, and as such is encountered in their cuisine. Also in Ethiopia, fresh rue is dipped in coffee before drinking it. Due to small amounts of toxins it contains, it must be used in small amounts, and should be avoided by those who are pregnant or who have liver issues. Skin contact with the herb's juices are also highly advised against, due to its ability to burn the skin when it comes into contact with sunlight. It has a variety of other culinary uses:
OtherRue is also grown as an ornamental plant, both as a low hedge and so the leaves can be used in nosegays. Most cats dislike the smell of it, and it can, therefore, be used as a deterrent to them (see also Plectranthus caninus).[citation needed] Caterpillars of some subspecies of the butterfly Papilio machaon feed on rue, as well as other plants. The caterpillars of Papilio xuthus also feed readily on it.[10] In South India, rue is recommended for home gardens to repel snakes (however the effectiveness is unknown). Rue is also a common ingredient in witchcraft and spell making.[clarification needed] During the Middle Ages it was a symbol of recognition between witches.[clarification needed] The Catholic Church also used a branch of rue to sprinkle holy water on its followers: during this time it was known as the "herb of grace". Hasidic Jews also were taught that rue should be placed into amulets to protect them from epidemics and plagues.[11] Other Hasidim rely on the works of a famous Baghdadi Kabbalist Yaakov Chaim Sofer who makes mention of the plant "ruda" (רודה) as an effective device against both black magic and the evil eye.[12] It finds many household uses around the world as well. It is traditionally used in Central Asia as an insect repellent and room deodorizer.[clarification needed] Effect of the common rue on skin in sunny weather Rue is generally safe if consumed in small amounts as an herb to flavor food. Rue extracts are mutagenic and hepatotoxic.[4] Large doses can cause violent gastric pain, vomiting, liver damage, and death.[4] This is due to a variety of toxic compounds in the plant's sap. It is recommended to only use small amounts in food, and to not consume it excessively. It should be strictly avoided by pregnant women, as it can be an abortifacient and teratogen. Exposure to common rue, or herbal preparations derived from it, can cause severe phytophotodermatitis, which results in burn-like blisters on the skin.[13][14][15][16] R. graveolens essential oil in a clear glass vial A series of furanoacridones and two acridone alkaloids (arborinine and evoxanthine) have been isolated from R. graveolens.[17] It also contains coumarins and limonoids.[18] Cell cultures produce the coumarins umbelliferone, scopoletin, psoralen, xanthotoxin, isopimpinellin, rutamarin and rutacultin, and the alkaloids skimmianine, kokusaginine, 6-methoxydictamnine and edulinine.[19] The ethyl acetate extract of R. graveolens leaves yields two furanocoumarins, one quinoline alkaloid and four quinolone alkaloids.[20][21] The chloroform extracts of the root, stem and leaf shows the isolation of the furanocoumarin chalepensin.[22] The essential oil of R. graveolens contains two main constituents, undecan-2-one (46.8%) and nonan-2-one (18.8%).[23] The bitter taste of its leaves led to rue being associated with the (etymologically unrelated) verb rue "to regret". Rue is well known for its symbolic meaning of regret and it has sometimes been called "herb-of-grace" in literary works. In mythology,[24] the basilisk, whose breath could cause plants to wilt and stones to crack, had no effect on rue. Weasels who were bitten by the basilisk would retreat and eat rue in order to recover and return to fight. In the BibleRue is mentioned in the Bible, Luke 11:42:
In LithuaniaRue is considered a national herb of Lithuania and it is the most frequently referenced herb in Lithuanian folk songs, as an attribute of young girls, associated with virginity and maidenhood. It was common in traditional Lithuanian weddings for only virgins to wear a rue (Lithuanian: rūta) at their wedding, a symbol to show their purity. In UkraineLikewise, rue is prominent in Ukrainian folklore, songs and culture. In the Ukrainian folk song "Oi poli ruta, ruta" (O, rue, rue in the field), the girl regrets losing her virginity, reproaching the lover for "breaking the green hazel tree".[25] "Chervona Ruta" (Червона Рута—"Red Rue") is a song, written by Volodymyr Ivasyuk, a popular Ukrainian poet and composer. Pop singer Sofia Rotaru performed the song in 1971. In Jewish culture"Una Matica de Ruda" is a traditional Sephardic wedding song. In English literatureIt is one of the flowers distributed by the mad Ophelia in William Shakespeare's Hamlet (IV.5): "There's fennel for you, and columbines: there's rue for you; and here's some for me: we may call it herb-grace o' Sundays: O you must wear your rue with a difference..."It was planted by the gardener in Richard II to mark the spot where the Queen wept upon hearing news of Richard's capture (III.4.104–105): "Here did she fall a tear, here in this place I'll set a bank of rue, sour herb of grace."It is also given by the rusticated Perdita to her disguised royal father-in-law on the occasion of a sheep-shearing (Winter's Tale, IV.4): "For you there's rosemary and rue; these keep Seeming and savour all the winter long."It is used by Michael in Milton's Paradise Lost to give Adam clear sight (11.414): "Then purg'd with euphrasy and rue The visual nerve, for he had much to see."Rue is used by Gulliver in Gulliver's Travels (by Jonathan Swift) when he returns to England after living among the "Houyhnhnms". Gulliver can no longer stand the smell of the English Yahoos (people), so he stuffs rue or tobacco in his nose to block out the smell.
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